Cd-r, its data area distribution method, device and data reproduction method from cd-r

FIELD: information technologies.

SUBSTANCE: stated CD-R which allows data area distributing, its data area distribution method, data recording device and data reproduction method from CD-R. Specified disk includes preset section containing distribution information which points out if at least one segment of disk data area distributed for disk errors processing. In disk and in method information of data area distribution, which defines data area structure, is written in disk, providing possibility to recording/reproducing device to define data area structure. That is why for disk errors processing areas distribution is available such as reserve area, which differs from user data storage area, for data area.

EFFECT: area distribution for disk error processing allows effective using of CD-R.

17 cl, 18 dwg

 

The technical field

The present invention relates to one-time recordable disc, and more particularly to once recordable disc, which allows you to allocate a region that stores data other than user data, allocation data region once recordable disc, the data recorder at once recordable disc, and method and device playback data once a writable disk.

Prior art

Defect management is performed to allow the user to overwrite the user data portion of the user data area in which there is a defect in the new part of the user data area of the disk, thereby compensating for the loss of data caused by the defect. In principle, the defect management is performed using the methods of linear replacement or replacement offset. In the method the linear change of the user data area in which the defect occurs is replaced with the backup data area having no defects. The replacement method with offset user data area having the defect is shifted to the use of the following user data area having no defects.

As a method for linear replacement, and replacement method with the offset applies only to disks, such as DVDRAM/RW (DVD-RAM recording/reading), on which data can be recorded again, and the recording can be performed using a method of random access.

However, there are cases when the processing defects of the disk cannot be performed at once recordable disc with a recording device/playback using the method of linear replacement. For example, when data is written to once recordable disc in real time, it is difficult to perform defect management using device recording/playback using the method of linear replacement.

For this reason, the backup area is allocated for once recordable disc, only if you want to handle defects on the disk using a recording device/playback. That is, the distribution of the backup area is determined by the intention of the user.

Also you can distribute not only the reserve areas, and other areas for the field data once recordable disc for processing defects of the disk, if necessary.

However, if other areas, not for user data allocated to the data area, the recording device/ playback is not able to recognize the structure of the data area.

In other words, if once recordable disc does not contain information about the structure of the data area, the device is in the recording/playback is not able to determine distributed whether other areas for information other than user data, field data, and to determine the position and size of the user data, if generated other areas.

After the operation record information that identifies the field that contains the data is recorded in a raster format in a pre-specified area of the disc, thereby facilitating further write operation or the read operation.

More specifically, the recordable area of the disc consists of many clusters, which are blocks of data records or blocks of error correction. If the data clusters, and empty clusters recorded as information in a raster format (bitmap format), the recorder/playback can easily gain access to desirable area during a write operation or read.

In particular, information of the bitmap that identifies the field containing the data to be very useful once recordable disc. In other words, you want to quickly detect the cluster, which is next to the cluster in which the data was recorded with the most recent, so as to record data once recordable disc. Information bitmap enables a quick detection of the next cluster.

You can also examine the changing the state of the record once recordable disc and to detect the source data, recorded before the occurrence of the change, using the information of the bitmap. The recording disk can be changed by writing other data on a single recordable disc containing the data.

Disclosure of inventions

The present invention provides once recordable disc on which both user data and other data can be recorded and allocated in the data area.

The present invention also provides a disk, the data recording which can easily be checked.

The present invention also provides a method for allocating a data region once recordable disc, so that as the user data, and other data could be recorded and distributed to the field data.

The present invention also provides a recording device and distribute as user data and other data in the data area once a writable disk.

The present invention also provides a method of playback data once recordable disc on which user data and other data recorded in the data area.

The present invention also provides a playback device data once recordable disc on which user data and other is data recorded in the data area.

According to one aspect of the present invention is provided once recordable disc containing the starting area, the data area and the exit area, and the disc contains a pre-specified area, which stores information, which indicates whether distributed at least one segment of data area for defect management of the disk.

According to one aspect of the present invention is provided once recordable disc that contains at least one record layer, comprising at least one data region that stores user data, and at least one predefined area that stores information distribution areas, which indicates the distribution is at least one segment of at least one data region for processing defects of the disk.

According to another aspect of the present invention provides a method for allocating a data region once recordable disc, receiving instruction on whether the distribution of at least one part of the data region of the disk for processing defects of the disk, and the recording information distribution areas, which indicates distribution is at least one segment of data area of the disk for processing defects of the disk will precede the correctly specified area of the disk.

According to another aspect of the present invention is provided a recording device including a recording unit/reproducing, which writes data on a single recordable disc or reads data once recordable disc; and a controller that controls the unit recording/playback to record information distribution areas, which indicates the distribution is at least one segment of data area of the disk for processing defects of the disk at a predetermined region of the disk in response to the instruction regarding whether the distribution of at least one segment of data area.

According to another aspect of the present invention provides a method of playback data once recordable disc, which includes access to pre-specified area of the disc for reading information of the distribution area and obtain information relative to the location of at least one segment of data area of the disk, which is distributed for processing defects of the disk, from the information distribution areas.

According to another aspect of the present invention provides a playback device data once recordable disc, which includes a block read that reads data from a disk; and a controller, the which manages the block read access to the predetermined area of the disk, to read the information distribution areas and to obtain information relative to the location of at least one segment of data area of the disk, which is distributed for processing defects of the disk, from the information distribution areas.

Other aspects and/or advantages of the invention set forth in part in the following description and, in part, obvious their description or can be learned in the process of practical implementation of the invention.

Brief description of drawings

These and other aspects and advantages of the invention are explained in the following description of embodiments illustrated by the drawings, which represent the following:

Figa and 1B - patterns once recordable disc in accordance with the variants of implementation of the present invention;

Figure 2 - structure of the disk with a single record layer, allowing the distribution of the data region in accordance with the embodiment of the present invention;

Figure 3 is a detailed structure of the field TDDS (temporary defect structure of the disk, shown in figure 2;

4 is a detailed structure of the field of SBM (space bit map), shown in figure 2;

Figure 5 - structure of the disk with a single record layer, allowing the distribution of the data region in accordance with another embodiment this is part II of the invention;

6 is a detailed structure of a TDDS area+SBM, shown in figure 5;

Fig.7 - disk structure with one layer recording, allowing the distribution of the data region in accordance with another embodiment of the present invention;

Fig - detailed structure of the TDMA area (the area of the temporal distribution of the disk, shown in figure 5;

Fig.9 - the detailed structure of the information area of the disk, and control + SBM shown in Fig.7;

Figure 10 - structure of the disk with a single record layer, allowing the distribution of the data region in accordance with another embodiment of the present invention;

11 is a detailed structure of the TDMA area #1, shown in figure 10;

Fig - detailed structure of the cluster, as shown at 11, which is recorded as a TDDS area and region SBM;

Fig - detailed structure of the cluster containing the information on the disk is initialized, obtained when the disk is initialized;

Fig - detailed structure of the cluster containing the information re-initialize the disk;

Fig - structure region SBM in accordance with the embodiment of the present invention;

Fig - finansowania region SBM in accordance with the embodiment of the present invention;

Fig - block diagram of the playback device, the corresponding option assests the of the present invention;

Fig is a block diagram of an algorithm illustrating a method of allocating a data region once recordable disc, corresponding to the implementation of the present invention.

The best mode of carrying out the invention

Listed below are links to details of the embodiments of the present invention, examples of which are illustrated in the drawings, in which identical reference positions denoted by the same elements. Options for implementation are described below with reference to the drawings.

Figa illustrates the structure once recordable disc (hereinafter referred to as "disk") according to a variant implementation of the present invention, representing a disk with a single recording layer, with the layer L0 recording. The disc includes the landing area, the data area and the output area. The initial zone is located in the inner part of the disk, and the output area is situated in the outer part of the disk. The data region is located between the starting area and the output area and is divided into a user data area and a reserved area. Back area has a predetermined size, since the start of the data area.

On FIGU shows the disk representing the failed drive with dual layer write with two layers L0 and L1. The initial area, the data area and the outer area are sequentially formed, N. the beginning from the inner part of the first layer L0 recording to external parts. Thus, the external region L1, the data area and the output area are sequentially formed from the outer part of the second layer L1 recording to its internal parts. Unlike disk with a single record layer, shown in figa, the outer zone of the second layer L1 entry is present in the inner part of the second layer L1 of the recording. That is, the disk has the opposite trajectory paths, on which the recorded data, starting from the initial zone in the inner part of the first layer L0 recording to an external part and continuing from the outer region of the second layer L1 write to the output area in the inner part. The backup area is assigned to the first and second layers L0 and L1, respectively.

In this embodiment, the backup area is located between the starting area and a user data area and between the outer region and the user data. However, the location and number of reserve areas are not limited to the specified option.

The following describes the initialization of the disk according to the present invention. Disk initialization is a surgery appointment, which is to use the disc. More specifically, information relating to the structure of the data area, is recorded in a predetermined area of the disk, thereby allowing the recording device/playback to recognize structure the ru data region. Information determines whether distributed region, for example, a reserved area in which the recorded data related to the processing defects of the disk using a recording device/playback other than the user data area data, and determines the location of the areas allocated to the data areas. If the disk is initialized, i.e. information related to the structure of the field data recorded after the disk is initialized, the device recording/playback to check the availability and location of areas in which recorded information other than user data, and to determine the area in which shall be recorded user data.

Next, with reference to figure 2-9 described embodiments of the disk where the backup area for defect management disk formed in the data region in accordance with the present invention.

Figure 2 shows the structure of a disk with a single record layer that enables the distribution of the data area, in accordance with the embodiment of the present invention. According to figure 2 the initial area of the disk includes processing defects (DMA) DMA1 and DMA2, the scan area of the recording conditions, the area TDDS (temporary structure defects of the disk), the area TDFL (temporary list of defects), the area prostranstvennaiia maps and information area of the disk, and control.

In the General case, when the disk is loaded in the recorder/playback device, recording/playback reads the information from the initial zone and/or output zones to determine how to manage the disk and to perform the operation of reading/writing.

Therefore, if the amount of information recorded in the initial zone and/or the output area increases, then more time will be needed to prepare for recording and/or reproduction of data after loading the disc. To solve this and/or other problems, the present invention provides for the temporary management information containing TDDS and TDFL, and the temporary management information recorded in the TDFL area or TDDS, formed separately from the primary zone and/or output zones.

If more data will not be recorded on the disc, the recorder/playback starts finalizing the disc in which the recording area of the TDFL and the TDDS are recorded as the management information of the defects in the field of DMA. In the process of finalizing a disc, only the most recent recorded TDFL and TDDS are copied to the DMA region. Accordingly, the recording/ playback can quickly complete the finalize disc by reading only the latest updated information from the DMA area. In this case, the information processing defects persists in many areas, t is m thus increasing the reliability of the information.

Processing defects of the disc according to the embodiment uses the linear substitution, and, therefore, determines the TDFL area, i.e. the defective area of the disc, in which there is a defect, and a replacement area, which replaces the defective area. TDFL, in addition, determines whether the defective area is only a defective cluster, or continuous defective cluster in which physically occurs the sequence of defects. TDDS that represents information that controls TDFL, determines the location of the TDFL entries.

The initial area includes the area of spatial bitmap (SBM), which contains information of the bitmap related to the field that contains the data, i.e. information related to the data record.

The data area includes the reserve areas #1 and #2 and the user data area.

In this embodiment, the backup area #1 and #2 are formed at the beginning and end of the data area, respectively, for the case when the processing defects of the disk is performed using a recording device/playback during disk initialization.

Output area includes the area of DMA #3 and #4 and other areas.

When the user decides to perform the processing defects of the disk using a recording device/playback and under the em command in the recorder/playback to distribute the backup area in the data area, the recorder/playback distributes the reserve areas #1 and #2 predefined portions of the data region, for example, at the beginning and end of the data region. Then the recorder/ playback records information distribution areas, which indicates the distribution of reserve areas #1 and #2, the first cluster area TDDS. Information distribution areas can determine the size of the distributed backup areas #1 and #2. If the start and end addresses of the reserve areas #1 and #2 are defined, for example, when the backup area #1 and #2 are placed at the beginning and end of the data area, respectively, the recorder/playback can recognize the distribution of reserve areas #1 and #2, the position and size of each backup area on the basis of information relating to the size of the backup area.

If the start and end addresses of the reserve areas #1 and #2 are not preset, the starting and ending addresses are determined and recorded, or information about the size of the reserve areas #1 and #2 is recorded in the first cluster area TDDS.

In this embodiment, the information distribution areas is recorded in the TDDS area, but may not enroll in another area.

After recording the information distribution areas in the first cluster area TDDS bitmap Zap is described in the first cluster region SBM, moreover bitmap writes the bit corresponding to the location of the first cluster TDDS and area SBM, in the form of "1"and the corresponding bits for locations in other clusters as "0".

If the user is undesirable to handle disk errors using the recorder/playback, the recorder/playback records information of the distribution area, which describes the amount of reserve areas #1 and #2, in the form of "0" in the first cluster TDDS.

After recording the information of the distribution area in the TDDS, a bitmap that specifies the bits that correspond to the locations of the first cluster TDDS and area SBM as "1", and indicates the bit corresponding to the locations of other clusters as "0"is written in the first cluster region SBM.

As mentioned above, you can change the structure of the data region by re-initializing the disk and the update information distribution areas, even if the information distribution areas was recorded in the TDDS, and data were recorded on the disc during the previous initialization of the disk. Reinitialize disk is described below with reference to Fig.

If the user does not need to handle disk errors using the recorder/playback, then no information will be recorded in the DMA area. In this case, information of the distribution areas recorded in the field TDDS is recorded in the DMA area, even if the finalize disc fails.

Meanwhile, re-recordable disc does not contain the field TDDS and, therefore, the reproduction of information from the disk area TDDS containing information distribution areas, using a playback device for re-recordable discs can be used due to incompatible data structures. To solve this and/or other problems, the information recorded in the TDDS area is copied in the area DMA on the drive when you finalize disc.

In other words, if the processing defects of the disk using a recording device/playback should not be performed, the information distribution areas recorded in the field TDDS is recorded in the DMA region before finalizing the disc, thereby enabling reproduction of information from the disk using the playback device re-writable disk.

Figure 3 shows the structure of a TDDS area presented in figure 2, in accordance with the embodiment of the present invention.

TDDS is recorded in the cluster region TDDS at least once before the end of the write operation. In principle, many TDDS #0, TDDS #1, ... recorded in the TDDS area. In this embodiment, TDDS #0 is recorded in the cluster region TDDS once is about the end of the write operation.

According to figure 3 the TDDS area consists of many clusters. The cluster is the basic unit recording and consists of a predefined number of sectors. The sector is the basic physical unit of disk.

During initialization of the disk, when the user determines whether to be allocated to the reserve area information distribution areas, indicating that this user definition, is recorded in the TDDS #0. TDDS #0 includes the ID of the TDDS information counter indicating the number of updates for TDDS #0, the location information related to the control information, the location information related to a TDFL, if available, information pertaining to the size of the backup area #1, and information related to the size of the backup area #2. As stated above, if the user does not need processing defects of the disk using a recording device/playback, and backup region is allocated in the data area, the amount of reserve areas #1 and #2 are recorded as "0".

Although the detailed structure of the TDFL area not shown, TDFL#i contains information related to the defects in the data recorded during the recording operation #i, and information related to replacements for defects. Thus, the previous lists TDFL#0, #1, #2, ..., #i-1 does not accumulate in the list TDFL #i and only the information related to defects in the recording area, made for a corresponding write operations #i is recorded in the list of TDFL #i, thereby minimizing the capacity of the recording and allowing efficient use of space records TDDS.

Figure 4 shows the structure of the SBM area, shown in figure 2, in accordance with the embodiment of the present invention. The SBM area contains many clusters, and each region SBM #i is recorded in the cluster.

Each area SBM #i contains the header area of SBM and the area of the bitmap. In the header area SBM recorded information ID SBM, information counter indicating the number of updates the field SBM #i, and the flag was finalized. Flag finalizing described below.

The area of the bitmap contains a bit map that indicates the data clusters, and empty clusters with different values of the bits in blocks of clusters with respect to all of the recorded areas of the drive.

After recording TDDS #0, written SBM #0 in the first cluster region SBM. In the bitmap SBM #0 bit corresponding to the location of the first cluster TDDS, and the bit corresponding to the location of the first cluster, expressed as "1"and the bits corresponding to the remaining clusters, expressed as "0".

Accordingly, information of the size of the records relating to the reserve areas in the TDDS #0, who provides the very useful device recording/playback to check the presence of the reserve areas and to determine the location and size of distributed backup areas. The recorder/playback can quickly identify the area containing data, and a blank area on the disk by writing SBM #0 after recording TDDS #0.

On the disk, shown in figure 2, the area TDDS, TDFL area and region SBM formed individually, and the field of TDDS, TDFL and SBM recorded in units of clusters, respectively. However, the record TDDS and SBM are not limited to these areas, i.e. they can be written in various fields.

Figure 5 illustrates the structure of a disk with a single record layer that enables the distribution of the data region in accordance with the embodiment of the present invention. In this embodiment, the initial area includes an area in which is recorded as TDDS, and SBM.

If the user is desirable to perform processing defects of the disk using a recording device/playback, and it issues a command to the recorder/playback to distribute the backup area, the recorder/playback distributes the reserve areas #1 and #2 at the beginning and at the end of the field data with predefined dimensions, respectively.

Then the recorder/playback records information distribution, which indicates the distribution of reserve areas #1 and #2, in the first cluster TDDS and SBM.

6 illustrates the detailed structure of the region is STI TDDS+SBM, shown in figure 5. According to Fig.6 TDDS and SBM recorded in the cluster. TDDS contains the information of the size, i.e. the information of the distribution area in relation to each reserve area and SBM and SBM contains a bitmap.

After recording the information of the distribution area in the first cluster area TDDS+SBM, bitmap writes the bit location of the first cluster area TDDS+SBM as "1" and bits for locations other clusters as "0".

7 illustrates the structure of a disk with a single record layer, allowing the distribution of the data region in accordance with another embodiment of the present invention. In this embodiment, the initial area includes the area of the temporal distribution disk (TDMA), which is recorded as a TDFL and TDDS, and the information area of the disk, and control + SBM, which is recorded as information of the drive and control, and SBM. That is, the TDFL and the TDDS is recorded in the cluster, and information drive and control and SBM recorded in the cluster.

Similar variants of the implementation shown in figure 2 and 5, the user defines the processing defects of the disk using a recording device/playback, and it issues a command to the recorder/playback to distribute the backup area to the data area on the disk. Then the recorder/playback distributes the backup region is ti #1 and #2 at the beginning and end of the data area of predefined size.

Then, the recording/playback recording information distribution areas, which indicates the distribution of reserve areas #1 and #2, in the first cluster TDMA.

Fig illustrates the detailed structure of the TDMA area, shown in Fig.7. The TDMA area consists of a cluster, which contains the information processing defects of the disk. In each cluster recorded TDDS and TDFL. TDDS containing information about locations of the reserve areas, and the information represents information distribution areas.

Fig.9 illustrates the detailed structure of the information area of the disk, and control + SBM, shown in Fig.7, in accordance with the embodiment of the present invention.

Each cluster contains the information of the disk, and control and information SBM. Information SBM contains a bitmap.

Information regarding the locations of the backup areas recorded in the first cluster TDMA. Then the bit map indicates the bits for the first cluster region TDMA and information drive and control and the field of SBM by "1"and the bits for the other clusters by "0".

Figure 10 illustrates the structure of a disk with a single record layer that enables the distribution of the data area, in accordance with the embodiment of the present invention. Unlike disk according to the options proposed is tvline, described above, the drive figure 10 further comprises a TDMA #2 in the data area, in addition to TDMA #1 in the initial area.

Region TDMA #1 and #2 are different from each other so that the updated information is recorded in the TDMA area #1 or before the conclusion of the disc from the recorder/playback, or during initialization of the disk, and the updated information is recorded in the TDMA area #2 operating blocks in the process of writing data to disk. Here operating blocks are blocks in which is provided a method of testing after recording. In the method validation after the recording data is recorded in units of clusters, and then checked.

If the TDMA area is distributed only in the initial zone, the size of the TDMA is limited, thus making it difficult frequent information updates. The number of updates can be reduced by upgrading TDDS at the conclusion of the disc from the recorder/playback. However, in this case, the updated TDDS is not fully completed when the interruption of the power supply device and the recording/playback in an unexpected way, for example, when the power fails during a write operation.

To solve this and/or other problems, the disk is presented on figure 10 additionally includes a region TDMA #2 in the data area. TDDS is updated and written to the field device and the recording/vosproizvedeny the TDMA #2 in blocks, in which is provided a method of testing after recording, thereby preparing in case of failure, the update TDDS when power interruption. Directly before the output disk, final information about defects and status information about disk re-recorded in the TDMA areas as #1 and #2, thereby enhancing the reliability of the information.

The reason for the formation region of TDMA #2 in the data is that frequent updating of information in the field of TDMA #2 requires that the area of the TDMA #2 had a significant size. On the other hand, you do not want the area TDMA #1 had a significant size, and therefore it is formed in the primary zone (or in the output area).

If the user is undesirable processing defects of the disk using a recording device/playback or he does not require distribution area TDMA #2, although it is desirable processing defects of the disk using a recording device/playback during initialization of the disk, the area of the TDMA #2 will not be allocated in the data area, and information distribution areas, indicating that this information is recorded in the TDMA area #1.

Figure 11 shows the detailed structure of the TDMA area #1, presented in figure 10. According to 11 TDFL, TDDS and SBM recorded in the TDMA area #1. More specifically, as TDDS, and SBM recorded in the cluster TDDS+SBM #k, and a list of the TDFL is recorded is another cluster (k is an integer, greater than 0). Region TDMA #2 has the same structure as that of the TDMA area #1, so its detailed description is not given.

On Fig presents detailed structure of the cluster TDDS+SBM #k, shown at 11, on which is recorded as TDDS, and SBM. According Fig TDDS determines the location of the test recording conditions, information management, list TDFL, reserve areas #1 and #2, the TDMA area #2, the area of TDDS+SBM for another recording layer and the field TDDS+SBM for another area TDMA.

If the start and end addresses of each area of the disk is defined, the information pertaining to the size of the reserve areas #1 and #2 and area TDMA #2 as information about their location, is sufficient. Otherwise, the location information indicated their start and end addresses corresponding to each area of the disk.

If the disk has at least two layers of recording requires SBM for each recording layer.

Fig illustrates the detailed structure of the cluster TDDS+SBM #0 containing the information on the disk is initialized, obtained during disk initialization. Fig illustrates the case when the backup area #1 and #2 and the area of the TDMA #2 formed in the data area. According pig information about the size of the reserve areas #1 and #2 and area TDMA #2 is written as the information of the disk initialization. In this case, it is clear clinically and end addresses of each area have already been defined.

Even if the backup region is allocated in the data area, and initialized by the information distribution of the recording area, which indicates the distribution, the structure of the data region can be changed by re-initializing the disk and the update information distribution areas.

Fig illustrates the detailed structure of the cluster TDDS+SBM #n+1, containing information re-initialize the disk. According pig information, which detects changes in the amount of reserve areas #1 and #2 and TDMA #2, recorded in the TDDS area.

Suppose that the reserve area #1, area TDMA #2 and the user data area and a reserved area #2 are sequentially formed in the data area, and information about the defects recorded in the backup area #2 from the cluster with the highest address to the cluster with the lowest address. In this case, a second disk initialization is performed for the effective use of the recording area between the cluster with the highest address and the cluster with the lowest address of the backup area #2.

In other words, reinitialize the disk increases or decreases the size of the backup area #2, thereby providing efficient use of the recording area.

Information re-initialization of the disk is recorded in at least one cluster TDDS+SBM owned areas and TDMA #1 or region TDMA #2.

Described in more detail below information SBM, i.e. information regarding the scope of the data record.

Fig illustrates the structure of the field of SBM in accordance with the embodiment of the present invention. According Fig region SBM from #0 to #n, which provide information about the recording area of the data recorded in the field SBM. In this embodiment, information SBM #i is recorded in the cluster (i is an integer from 0 to n). However, as shown in Fig.6-9, information SBM #i can be recorded along with other information in the cluster.

Each information SBM #i provides header information containing the descriptor SBM, flag finalizing the counter update and bit map #i (i is an integer from 0 to n), which indicates a recordable area of the whole recording area of the disk in units of clusters.

If data is later written to the disk and the information recording area of the data varies, each information SBM #i, which contains a new bit map describing the area of the recording data is generated and recorded. In this case, the counter update represents the number of times of update information of the data area.

The time is generated and updated each information SBM #i, can be defined in different ways, depending on the program installed in the recorder/playback. However, after recording the data is on the disk, new information SBM #i must be generated and recorded before the conclusion of the disc from the recorder/playback.

Flag finalizing indicates if the disc is finalized or not.

Fig illustrates the scope finalized information SBM in accordance with the embodiment of the present invention. Flag finalization of header information SBM is set to 0 and recorded along with other information. According pig information SBM, written just before finalizing the disc, information is SBM #n. If the team is finalizing issued from the host, such as a computer device, recording/playback, the recorder/playback specifies the end of the disc is finalized by changing the flag in finalizing information related to SBM #n, which was updated last, from 0 to 1, and re-write information SBM #n.

If necessary, the recording/playback may not allow more to record information SBM by recording data such as "ffh" in the region adjacent to the region containing SBM #n having the flag finalizer "1", thereby preventing the subsequent write data to disk.

The user can maintain the state of the recording disk at a specific point in time, when you finalize the disc on the basis of information SBM with flag finalizer "1". Yes the e if the data recorded on a finalized disc, modified, or new data is appended to the original data without permission, it is possible to detect the source of the data recorded in the process of finalizing a disc, by accessing the bitmap contained in the information SBM with flag finalizer "1". Therefore, the data added after the disc is finalized, can be easily detected.

The area in which recorded each information SBM #i, positioned in at least one of the data region, the initial zone and the output zone, as shown on figa and 1B.

Backup field and TDMA allocated data region in the above embodiments, but the scope for which is distributed back region and the TDMA, and the area allocated to the data region is not limited. For example, the TDMA area and region TDDS can be additionally allocated to the data region. Also, the TDDS area and region SBM distributed in the above embodiments, the initial area, but can be formed in the data area or output area.

Although not shown, the TDFL area can be formed in the data area. In this case, if the user desired handling defects disk using a recording device/playback, the user allocates a reserved area #1, reservo the area #2 and the TDFL area and writes the TDDS and SBM, as explained above. The TDFL area can be positioned between the starting area and a backup area #1, between the backup area #1 and the user data area, in the middle of the user data between the user data area and a backup area #2 and between the backup area #2 and the output area. If the user is undesirable processing defects of the disk using a recording device/playback, the distribution of the reserve areas is not required. However, if the user writes the data in real-time using the information about the defects of the disk obtained by scanning the disk, it is required that the TDFL area for storing information concerning defects in the disk. Therefore, the TDFL is allocated during initialization of the disk.

In the above embodiments, the implementation in accordance with the present invention the distribution of the reserve areas and write bitmap is described in relation to disk with a single recording layer. However, the present invention can be applied to drive with dual layer write.

Once recordable disc according to the present invention includes the area of the TDMA processing defects of the disk. However, if the disk is a rewritable disk, the disk includes DMA, but does not include TDMA. Therefore, the recorder/playback rewritable who claims cannot record/reproduce data to/from the disk region TDMA, that is a compatibility issue drives. To solve compatibility disks list TDFL recorded in the TDDS area is copied in the TDMA area before finalizing the disc.

On Fig shows a block diagram of a recording device/ playback of the corresponding variant of implementation of the present invention. According Fig recorder/ playback block contains 1 record/playback controller 2 and the memory 3.

Under the control of the controller 2 unit 1 recording/playback writes data on the disk 100, corresponding to the present invention, and reads data from the disk 100 to verify the accuracy of recorded data.

The controller 2 controls the data area of the disc 100. Also, the controller 2 performs the verification procedure after recording in which data is recorded on the disk 100 using predefined blocks, and accuracy of the recorded data is checked to determine whether there is a defect in the disk 100. More specifically, the controller 2 writes the user data on the disk 100 using predefined blocks and checks the recorded user data, to determine the area of a disk 100, which has a defect. Then, the controller 2 creates a temporary list of defects (TDFL) and a temporary structure defects disk (TDDS), which determines the location of the field defect. Then, the USB circuits is p 2 temporarily stores the generated TDFL and TDDS in the memory 3. If the amount saved TDFL and TDDS reaches a predefined level, the controller 2 writes the TDFL and TDDS at a predetermined region, for example in the field of temporal distribution disk (TDMA) for disk 100.

Here, the disk 100 is a disk corresponding to the above options for the implementation of the present invention.

If the user decides to perform the processing defects of the disk using a recording device/playback, such as shown in Fig, and issues a command to the playback device to distribute the backup area in the data area, the playback device distributes the backup area, for example, a reserved area #1 and the backup area #2, the pre-defined parts of a data region of the disk, for example at the beginning and end of the data area.

Then, the recording/playback recording information distribution areas, which indicates the distribution of reserve areas #1 and #2, in the first cluster TDDS. Information distribution areas can determine the size of the distributed backup areas #1 and #2. If the start and end addresses of the reserve areas #1 and #2 are defined, for example, if the backup area #1 and #2 are located at the beginning and end of the data area, respectively, the playback device can recognize the distribution of cutting the main areas #1 and #2, as well as the locations and sizes of reserve areas #1 and #2, only on the basis of information pertaining to the size of the reserve areas.

For this reason, if the start and end addresses of the reserve areas #1 and #2 is not defined, then these addresses are determined and recorded, or information about the size of the reserve areas #1 and #2 is recorded in the first cluster TDDS.

The distribution of the field data using the playback device, the corresponding variant of implementation of the present invention is described below with reference to Fig and 18.

On Fig presents a block diagram illustrating a method for allocating a data region of the disk 100, corresponding to the implementation of the present invention. Initialize disk 100 is performed in response to user input before recording user data on the disk 100 (operation 110). Then, the command regarding whether the distribution of at least one section of the data area of the disc 100 for processing defects of the disk is transmitted to the controller 2 from the main device, such as a computer (operation 120). As noted above, the distribution section, such as a reserved area or region TDMA, the field of data processing defects of the disk is well-known to specialists in this field of technology. Alternatively, the device recording the playback/otherwise, what is the main device (host)can determine whether or not distributed, at least one section of the field data.

Then, the controller 2 controls the unit 1 recording/playback to record information distribution, which describes the distribution is, at least one section of the data area in a predetermined area of the disk 100 (operation 130). Information distribution areas can determine the size of the at least one part for processing defects of the disk.

Suppose that, as shown in figure 2, at least one section for processing defects of the disk includes a reserved area #1 and the backup area #2, and the initial position of the backup area #1 and the final position of the backup area #2 is located at the beginning and end of the data area, respectively. In this case, the playback device can recognize not only the allocation of reserve areas #1 and #2, but their location and the amount of reserve areas #1 and #2, only on the basis of information relating to the amount of reserve areas #1 and #2.

If the user does not need processing defects of the disk using the playback device, and it does not distribute at least one section, such as a reserved area or the data area, the information distribution areas, which specifies the size, at least, one of the first section, in the form of "0" is recorded at a predetermined area of the disk 100.

Information distribution areas can be recorded in the TDDS area formed in at least one of the starting zones, zone data, and an output zone of the disk 100. Also TDDS can be written in different zones, as shown in figure 3, 6, 8 and 12.

After initializing the disk 100 is completed by recording information distribution areas on the disk 100 in operation 130, the playback device can record user data on the disc 100 and to perform processing defects of the disk.

After the operation 130, the playback device records the user data in the user data area of the disc 100, and performs processing defects of the disk with use of the reserve areas and areas TDMA (operation 140).

Even after disk initialization, re-initialization of the disk 100 allows you to change the structure of the data area of the disc 100.

Then, the disk 100 is reinitialized in response to user input (operation 150). Then a command that instructs to redefine the structure of the data region, by distributing to new areas introduced with the device host controller 2.

Then, the controller 2 controls the unit 1 recording/playback to record information distribution areas are relatively new areas in PR is varicella specified area of the disc 100, thereby updating the information distribution areas (operation 160).

Information, such as SBM on areas containing data recorded on the disk 100. The SBM header information includes a flag finalization, which is, more data can be written to disk. If the flag is finalizing corresponds to "1", the change in status of the recording disk can be checked, and can be defined initial data before the change using the bitmap corresponding to the flag finalizer "1".

If the user is not desirable to perform the processing defects of the disk using the playback device, then no data is written to the DMA region. Thus, the information distribution areas recorded in the TDMA area, is recorded in the DMA region, regardless of whether completed finalize disc.

As a rewritable disc does not include the area of TDDS, playback data once recordable disc with TDMA area containing information distribution areas, using a playback device rewritable discs can be used due to compatibility issues. To solve this and/or other problems, the information recorded in the TDMA area, is recorded in the DMA region in the process of finalizing the disk, thereby providing compatibility disco is.

If the processing defects of the disk using the playback device is not required, the information distribution areas recorded in the TDMA area, is recorded in the DMA region before finalizing the disc, thus ensuring the reproduction data from the disc using the playback device rewritable discs.

For example, although not shown in the drawings, the playback device that reproduces data from the disc 100 containing information distribution areas, according to the present invention has a structure similar to a recorder on Fig, except that the playback device only includes a playback unit for reading data, instead of unit 1 recording/playback device for playback/recording. If the disc 100 is loaded into the playback device according to the present invention, the playback device accesses a pre-defined area, such as areas of TDMA, which contains the latest updated information distribution areas to consider this latest updated information distribution areas. Then, the playback device receives from the latest updated information distribution areas of information concerning the location of at least one section of the field data for processing the TCI defects of the disk. As described above, at least one section includes a TDMA area and the backup area. Since the playback device can recognize the data structure on the basis of information distribution areas, the playback device may be considered to be not only user data but also the data for processing defects of the disk, which is stored in the field TDMA and reserve areas allocated to the data region.

As described above, in accordance with the present invention, the information distribution areas related to the structure of the field data recorded on once recordable disc, thereby ensuring that the device is recording/playback to recognize the structure of the data area. Therefore, the distribution of areas such as the back area for defect management of the disk other than the area for storing user data for a data region, ensures efficient use of the disk.

Also, after the disk is initialized, the structure of the data region can be changed by updating the information distribution areas by re-initializing the disk.

In addition, the bit map that defines a writable data area, is recorded in a predetermined area of the disk, thereby ensuring that the device is recording, the playback/ quick access to the desired area. Bitmap allows the device to record/playback to check whether there is a change in status of the recording disk, and to determine the data originally recorded before the change, and the change occurs by writing additional data to the disk.

Although described and illustrated several embodiments of the present invention, specialists in the art should understand that there may be modifications of the described variations without deviating from the principles of the invention, the scope of which is defined by the claims and their equivalents.

1. The recorder and/or playback, containing

unit record and/or playback, which writes data on a single recordable disk or reads data from it, and

a controller which controls the recording unit and/or playback for recording information distribution areas, which indicates the distribution is at least one segment of data area of the disk for processing defects of the disk in a temporary structure defects disk (TDDS), formed at least in one of the starting area, the data area and the output area of the disk.

2. The device according to claim 1, in which the information distribution areas includes information that defines a size of the at least one what about the segment.

3. The device according to claim 1, wherein the controller unit controls the recording and/or playback for recording information related to the recorded data region in a predetermined region of the disk

the information related to the recorded data region that contains a bitmap that indicates the header information and a writable data area.

4. The device according to claim 3, in which the controller unit controls the recording and/or playback to record the values of the bitmap that corresponds to a predefined area, which stores information distribution areas, indicating distribution is referred to at least one segment of data area, as a predefined value that specifies the pane containing the data.

5. The device according to claim 3, in which the header information contains a flag finalizing that indicates if additional data is written to disk.

6. The device according to claim 2, in which the controller unit controls the recording and/or playback for recording information distribution areas, indicating the size of the mentioned at least one segment as "0"if this at least one segment of data area is not allocated.

7. The device according to claim 1, wherein the controller unit controls the recording and/or reproduction for the recording of information the AI distribution areas which is recorded in the time domain processing defects (TDMA), in the area of processing defects (DMA).

8. The device according to claim 1, in which at least one segment includes at least one of the backup area, the area of TDDS, TDFL area and TDMA.

9. The device according to claim 1, wherein the controller unit controls the recording and/or playback for recording information distribution areas, which indicates the distribution of the second TDMA data region, one of the first TDMA and the second TDMA formed in the primary zone of the disk.

10. The device according to claim 9, in which the first TDMA is an area in which updated information is recorded TDDS at least once before the conclusion of the disc from the recorder, and

the second TDMA is an area in which updated TDDS is recorded in blocks of predefined operations.

11. The device according to claim 1, wherein the controller unit controls the recording and/or playback for recording information distribution areas, which includes information specifying the size of the mentioned at least one segment in a predetermined area of the disk in response to a command, which instructs changing of the mentioned at least one segment.

12. The device according to claim 1, wherein the controller controls the unit to record and/playback to record information distribution areas in at least one cluster, starting from the beginning of the TDDS.

13. The playback device data once recordable disc, containing

a block read that reads data from a disk; and

a controller which controls the block read access to the predetermined area of the disk to read information distribution areas and to obtain information relative to the location of at least one segment of data area of the disk, which is distributed for processing defects of the disk, from the information distribution areas, these predefined region is a region TDDS, formed in at least one of the starting area, the data area and the output area.

14. The device according to item 13, in which information distribution areas include information that identifies the size of the mentioned at least one segment.

15. The device according to item 13, in which the disc further comprises a first time domain processing defects (TDMA)formed in the primary zone, and the second (TDMA)formed in the data area,

the information distribution areas indicates the distribution of the second TDMA data region, and referred to a predefined area in which the recorded information distribution areas,represents one of the first and second TDMA.

16. The device according to item 13, in which the mentioned at least one segment of data area contains at least one of the backup area, the area of TDDS, TDFL area and TDMA.

17. Once recordable disc containing the starting area, the data area and the output area of the disk, and TDDS, formed in at least one of these initial area, the data area and the output area of the disk that contains information distribution areas, which indicates the distribution is referred to at least one segment of data area of the disk for processing defects of the disk.

Priority items:

13.03.2003 according to claims 1-8, 12-17;

31.03.2003 on PP-11.



 

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