MX2008004084A - Write once disc, method of managing data area of write once disc, and apparatus and method for reproducing data therefor. - Google Patents

Abstract

A write once disc allowing management of a data area, a method of managing the data area of the write once disc, an apparatus recording data on the write once disc, an apparatus and method of reproducing data from a write once disc. The write once disc, includes a lead-in zone, a data area, and a lead-out zone. The write once disc includes a predetermined area storing area allocation information which indicates whether at least one section of the data area is allocated for disc defect management. In the disc and method, area allocation information specifying a structure of the data area is recorded on the disc, thus allowing a recording/reproducing apparatus to recognize the data area structure. Therefore, allocating areas, such as a spare area, for disc defect management other than an area for storing user data, to the data area is possible. The allocation of the areas for disc defect management to the data area enables effective use of the write once disc.

Description

SINGLE WRITING DISC, DISC DATA DATA AREA MANAGEMENT METHOD OF A SINGLE WRITING AND APPARATUS AND METHOD TO REPRODUCE DATA FROM THE SAME Field of the Invention The present invention relates to a single-write disc, and more particularly, to a single write-only disc that allows the distribution of an area that stores data other than user data, in addition it refers to to a method of handling a data area of the disk only of a write, and to a data recording apparatus on the disk of only one write, and to a method and apparatus of reproducing data from the disk of only one write. BACKGROUND OF THE INVENTION The administration or defect handling is performed to allow the user to rewrite the user data of a portion of a user data area, in which a defect in a new portion of the data area of the user is presented. user of a disk, with which, the loss of data that is caused by the defect is compensated. In general, defect management is performed using linear replacement or sliding replacement methods. In the linear replacement method, a user data area, in which a defect occurs, is replaced with a data reservation area that does not Ref: 191518 It has defects. In the sliding replacement method, a user data area that has a defect is slid in order to use the next user data area that has no defects. Both linear replacement and sliding replacement methods can be applied only to discs such as a DVD-RAM / RW in which data can be recorded repeatedly and recording can be performed using a random access method. Meanwhile, disk defect handling methods, even on a disk only of a script in which data rewriting is not allowed, use the linear replacement method that has been developed. However, there are cases where disk defect handling can not be performed on a single write-only disc with a recording / playback device, using the linear replacement method. For example, when the data is recorded on the disc only from a real-time write-up, it would be difficult to perform the disk defect handling on it with the recording / playback apparatus, using the linear replacement method. For this reason, a reservation area is distributed on the disc only of one write when disk defect handling is required using the recording / playback device. That is, the distribution of the area of Reservation is determined by the user's intention. Likewise, it is possible to distribute not only the reservation areas but also other areas in a data area of the disc only of one write for the handling of disk defect, if necessary. However, when other areas are distributed, not for user data, in the data area, the recording / playback apparatus does not have the ability to recognize the structure of the data area. In other words, if the write-only disk had no information regarding the structure of the data area, the recording / playback apparatus would not be able to determine whether or not other information areas other than the user data are distributed. in the data area, and determine the position and size of the user data area when the other areas are formed. After a write operation, the information specifying the areas containing data is written in a bitmap format in a predetermined area of a disk, thereby allowing an additional write operation or a read operation to be facilitated. More specifically, an area capable of being recorded from a disk consists of a plurality of groupings that are data recording units or error correction units. If the groupings that containing blank data and groupings are recorded as information in the bitmap format, the recording / reproducing apparatus can quickly access a desired area during a write or read operation. In particular, bitmap information that specifies the areas that contain data is very useful when using a write-only disk. In other words, it is required to quickly dt a next grouping in a grouping in which the data is most recently recorded in order to write the data to the disk only of one write. The bitmap information allows quick dtion of the next cluster. Likewise, it is possible to verify a change in the recording state of a single-write disc and dt the original recorded data before the change occurs, using the bitmap information. The recording status of the disc could change by recording additional data on the disc only from a write containing data. Brief Description of the Invention The present invention provides a write-only disc in which both user data and other data can be recorded and can be handled in a data area. The present invention also provides a disc whose data recording status can be verified easily. The present invention also provides a method of handling a data area of a write-only disk, so that both user data and other data can be recorded and handled in the data area. The present invention also provides a recording apparatus that records and handles user data and other data in a data area of a write-only disk. The present invention also provides a method of reproducing data from a write-only disk in which user data and other data are recorded in a data area. The present invention also provides an apparatus that reproduces data from a write-only disk in which user data and other data are recorded in a data area. According to one aspect of the present invention, there is provided a write-only disk that includes an input zone, a data area and an output zone, the disk includes a predmined area that stores the area distribution information that indicates whether at least one section of the data area is distributed for disk defect handling. According to another aspect of the present invention, a write-only disk is provided with at least one recording layer, which includes at least one data area that stores the user data, and at least one predmined area that stores the area distribution information, which indicates if at least one section of at least one data area is distributed for disk defect handling. In accordance with yet another aspect of the present invention, there is provided a method of handling a data area of a write-only disk, which receives an instruction as to whether the distribution of at least a portion of the area is required. disk data for handling disk defect and recording the area distribution information, which indicates whether at least one section of the data area is distributed for disk defect handling, in a predmined area of the disk. In accordance with yet another aspect of the present invention, a recording apparatus is provided that includes a recording / reproducing unit that records the data or performs the reading of data from a write-only disc; and a controller that regulates the recording / playback unit for recording the area distribution information, which indicates whether at least one section of a disk data area is distributed for disk defect handling, in a predmined area of the disk. disco, in response to an instruction regarding whether the distribution of at least one section in the data area is required. In accordance with still another aspect of the present invention, there is provided a method of reproducing data from a write-only disk, which includes access to a predetermined area of the disk to read the area distribution information, and to obtain the information regarding the location of at least one section of a disk data area, which is distributed for disk defect handling, from the area distribution information. In accordance with yet another aspect of the present invention, there is provided an apparatus that reproduces data from a write-only disk, which includes a reading unit that performs the reading of the data from the disk and a controller that regulates the reading unit for accessing a predetermined area of the disk, in order to read the area distribution information and obtain the information with respect to a location of at least one section of a disk data area, which is distributed for the disk defect handling from the area distribution information. The additional aspects and / or advantages of the invention will be pointed out in part in the description that follows and, in part, will be obvious from the description or may be learned through the practice of invention. BRIEF DESCRIPTION OF THE FIGURES These and / or other aspects and advantages of the invention will be apparent and appreciated more quickly from the following description of the modalities, which are taken in conjunction with the figures that accompany it, of which: Figures 1A and IB illustrate the structures of a writing-only disc according to the embodiments of the present invention; Figure 2 illustrates a structure of a single recording layer disk that allows the handling of a data area, according to an embodiment of the present invention; Figure 3 illustrates a detailed structure of the Disk Time Defect Structure (TDDS) area shown in Figure 2; Figure 4 illustrates a detailed structure of the Space Bitmap (SBM) area of Figure 2; Figure 5 illustrates a structure of a single recording layer disk that allows the handling of a data area, according to another embodiment of the present invention; Figure 6 illustrates a detailed structure of the TDDS + SBM area shown in Figure 5; Figure 7 illustrates a structure of a single recording layer disk that allows the handling of a data area, according to another embodiment of the present invention; Figure 8 illustrates a detailed structure of the Temporary Disk Management Area (TDMA) shown in Figure 7; Figure 9 illustrates a detailed structure of the disc and disk unit information area + SBM that is shown in Figure 7; Figure 10 illustrates a structure of a single recording layer disc that allows the handling of a data area, according to another embodiment of the present invention; Figure 11 illustrates a detailed structure of the TDMA # 1 shown in Figure 10; Figure 12 illustrates a detailed structure of a cluster, shown in Figure 11, in which a TDDS and a SBM are recorded; Figure 13 illustrates a detailed structure of a cluster containing the disk initialization information that is obtained during disk initialization; Figure 14 illustrates a detailed structure of a cluster containing the disk re-initialization information; Figure 15 illustrates a structure of an SBM area according to an embodiment of the present invention; Figure 16 illustrates a final area SBM according to an embodiment of the present invention; Figure 17 is a block diagram of an apparatus of recording according to one embodiment of the present invention; and Figure 18 is a flow diagram illustrating a method of handling a data area of a write-only disk, according to one embodiment of the present invention. Detailed Description of the Invention In the following, reference will be made in detail to the embodiments of the present invention, the examples of which are illustrated in the accompanying figures, wherein the same reference numbers represent the same elements through the figures The embodiments are described below to explain the present invention with reference to the figures. Figure 1A illustrates a structure of a write-only disc (hereinafter referred to as the 'disc') according to an embodiment of the present invention which is a single-layer recording disc having a recording layer THE. The disk includes an entry zone, a data area and an exit zone. The entrance area is located on the inside of the disc and the exit area is located on the outside of the disc. The data area is present between the entrance area and the exit zone and is divided into a user data area and a reservation area. The reservation area has a predetermined size that starts from the beginning of the data area. Figure IB illustrates a disk that is a double-layer recording disk having two recording layers LO and Ll. An input zone, a data area and an outer area are sequentially configured from the inner part of the first recording layer LO to its outer part. Also, an outer area, a data area and an exit area are sequentially configured from the outside of the second recording layer Ll to its inner part. Unlike the recording single layer disc of Figure 1A, the exit area of the second recording layer Ll is present on the inside of the second recording layer Ll. That is, the disk has an opposite track path (OTP) in which the data is recorded starting from the input area on the inside of the first recording layer LO to the outside and continuing from the outer area from the second recording layer Ll to the exit area on the inside. The reservation areas are distributed in the first and second recording layers LO and Ll, respectively. In this mode, reservation areas are present between the entry area and the user data area and between the outside area and the user data area. However, the positions and numbers of the reserve areas are not limited.

The initialization of a disk according to the present invention will be described below. Disk initialization is a preliminary recording operation that is performed before using a disk. More specifically, the information regarding the structure of a data area is written in a predetermined area of the disk, whereby, a recording / reproduction apparatus is allowed to recognize the structure of the data area. The specific information if the areas, for example, a reservation area, in which the data is recorded with respect to the handling of disk defect using a recording / playback device, other than the user data are distributed in an area of data, and specifies the positions of the areas distributed in the data area. If the disk initialization information, that is, the information regarding the structure of the data area, were recorded after the initialization of the disk, the recording / reproduction apparatus would be able to verify the presence and positions of the areas in which information other than user data is recorded and detects an area in which user data will be recorded. Subsequently, the modalities of a disk in which a reserve area is formed for the handling of disk defect in a data area, according to the present invention will be described with reference to Figures 2-9. Figure 2 illustrates a structure of a single recording layer disc that allows the handling of a data area, according to an embodiment of the present invention. With reference to Figure 2, a disk entry area includes the Defect Handling Areas (DMA) DMAl and DMA2, a recording condition test area, a Time Disc Defect Structure (TDDS) area, a Temporary Fault List (TDFL) area, a space bitmap area, and a disk and disk information area. In general, when a disc is loaded into a recording / reproducing apparatus, the recording / playback apparatus reads the information from an input zone and / or an output zone in order to determine how to handle the disc and perform a recording operation. reading writing. Therefore, if the amount of information recorded in the entrance area and / or the exit area increases, a larger amount of time will be spent preparing the recording or reproduction of the data after the loading of the disc. To solve this and / or other problems, the present invention proposes temporary driving information containing a TDDS and a TDFL, the temporary driving information that is being recorded in a TDFL or TDDS formed, separately from the entry area yy / or exit zone.

If more data will not be recorded on the disc, the recording / playback apparatus initiates the finalization of the disc during which the TDFL and TDDS recorded as defect handling information in the DMA are recorded. Through the completion of the disc, only the most recently recorded TDFLs and TDDSs would be copied into the DMA. Accordingly, the recording / playback apparatus can complete the initialization of the disc quickly by reading only the most recently updated information of the DMA. In this case, the defect management information is stored in a plurality of areas, thereby increasing the conflability of the information. The disk defect handling according to this mode uses the linear replacement method, and in this way, the TDFL specifies an area, that is, a defective area of the disk on which the defect occurs and a replacement area that replaces the defective area. The TDFL also specifies whether the defective area is a single defective grouping or a continuous faulty grouping in which a series of defects are presented in physical form. The TDDS, which is the information handled by the TDFL, specifies the recording position of the TDFL. The input zone includes the space or three-dimensional bitmap (SBM) area that contains the bitmap information with respect to an area that contains data, is say, the information regarding an area susceptible to be recorded of damage. The data area includes reservation areas # 1 and # 2 and a user data area. In this mode, reservation areas # 1 and # 2 are formed at the start and end of the data area, respectively, for a case where the handling of the disk defect is performed using a recording / reproduction device. during the initialization of the disk. The exit zone includes the DMAs # 3 and # 4 areas and other areas. When a user decides to perform the disk defect handling using the recording / playback apparatus and instructs the recording / playback apparatus to distribute the reservation areas in a data area, the recording / reproduction apparatus distributes the reservation areas # 1 and # 2 in predetermined portions of the data area, for example, at the beginning and at the end of the data area. Then, the recording / reproduction apparatus records the area distribution information, which indicates the distribution of reservation areas # 1 and # 2, in a first grouping of a TDDS area. The area distribution information can specify the sizes of the distributed reservation areas # 1 and # 2. If the start and end addresses of reservation areas # 1 and # 2 were determined, for example, when reservation areas # 1 and # 2 are located at the beginning and at the end of the data area, respectively, the recording / reproduction apparatus can recognize the distribution of reservation areas # 1 and # 2 and the position and size of each reserve area based on the information regarding the sizes of the reserve area. When the start and end directions of reservation areas # 1 and # 2 are not predetermined, the start and end addresses would be determined and recorded or the information regarding the sizes of reserve areas # 1 and # 2 would be recorded in the first grouping of the TDDS area. In this mode, the area distribution information is recorded in the TDDS area although it can be recorded in another area. After the recording of the area distribution information in the first cluster of the TDDS, a bitmap is recorded in a first cluster of the SBM area, the bitmap that registers the bit corresponding to the positions of the first groupings of the TDDS and the SBM area with 1 and which records the bits corresponding to the positions of the other groupings as 0. If the user does not wish to perform the disk defect handling using the recording / playback device, the recording device /reproduction would record the area distribution information, which describes the sizes of reservation areas # 1 and # 2 as 0, in the first grouping of the TDDS. After the recording of the area distribution information in the TDDS, a bitmap indicates the bits corresponding to the positions of the first groupings of the TDDS and the area SBM as 1 and indicates the bit corresponding to the positions of the other groupings such as 0, is recorded in the first grouping of the SBM area. As mentioned previously, it is possible to change the structure of the data area by re-initializing the disk and updating the area distribution information, even if the area distribution information was recorded in the TDDS area and the data were recorded on the disk during the previous initialization of the disk. The re-initialization of the disc will be further described with reference to Figure 14. When the user does not require handling of the disc defect using the recording / playback apparatus, no information will be recorded in the DMA. In this case, the area distribution information recorded in the TDDS area is recorded in the DMA area even if the completion of the disc was not being performed. Meanwhile, an album that can be rewritten or includes the TDDS area, and therefore, it would not be possible to reproducing the information of a disc with a TDDS area containing the area distribution information, using a reproduction apparatus for the discs susceptible to being rewritten, due to the incompatible data structures. To solve this and / or other problems, the information recorded in the TDDS area is copied to a DMA when the disc is finalized on the disc. In other words, if a disk defect handling using the recording / playback device was not performed, the area distribution information recorded in the TDDS area would be recorded in the DMA before the disk finalization, thereby, the reproduction of the information of a disc would be allowed using a disc reproducing apparatus capable of being rewritten. Figure 3 illustrates a structure of the TDDS area shown in Figure 2, according to one embodiment of the present invention. A TDDS is recorded in a grouping of a TDDS area at least once until the recording operation ends. In general, a plurality of TDDS # 0, TDDS # 1, ... areas are recorded in the TDDS area. In this mode, the TDDS # 0 area is recorded in a grouping of a TDDS area once when the recording operation ends. With reference to Figure 3, the TDDS area consists of of a plurality of groupings. A grouping is a basic recording unit and consists of a predetermined number of sectors. A sector is a physical basic unit of a disk. During disk initialization, when the user determines whether a reservation area will be distributed or not, the area distribution information indicating the user's determination is recorded in the TDDS # 0 area. The TDDS # 0 area includes a TDDS identifier, the counter information indicating the number of updates in the TDDS # 0 area, the position information with respect to the disk drive information, the position information with respect to a TDFL corresponding, if any, information regarding the size of reservation area # 1, and information regarding the size of reserve area # 2. As described above, when the user does not require the handling of disk defect using the recording / playback apparatus and distributes the reservation areas in a data area, the sizes of reservation areas # 1 and # 2 would be recorded. like * 0 '. Although a detailed structure of a TDFL area is not illustrated, a TDFL #i contains the information regarding the defects that occur in the data recorded during a recording operation #i and the information regarding the replacements for the effects. Likewise, the previous areas TDFLs # 0, # 1, # 2, ... # il are not accumulated in the TDFL # and only the information regarding the defects that happen in a recording area made during the corresponding recording operation #i would be recorded in the TDFL #i, with which, the recording capacity is minimized and the efficient use of a TDDS recording space is allowed. Figure 4 illustrates a structure of the SBM area shown in Figure 2, according to one embodiment of the present invention. The SBM area comprises a plurality of groupings and each SBM #i is recorded in a grouping. Each SBM #i includes an SBM header area and a bitmap area. In the SBM header area the information of the SBM identifier, the counter information indicating the number of updates in the SBM #i and an indication of completion are recorded. The indication of completion will be described later. The bitmap area contains a bitmap that indicates the groupings that contain data and blank groupings with different bit values in grouping units with respect to all the areas that can be recorded from a disk. After the recording of a TDDS # 0, a SBM # 0 is recorded in a first grouping of the SBM area. In the bitmap of area SBM # 0, a bit corresponding to the position of a first cluster of a TDDS and a bit that corresponds to the position of the first grouping, are expressed with 1, and the bits that correspond to the remaining groupings are expressed with 0. Consequently, the recording of the size information with respect to the reservation areas in the TDDS # 0 allows the recording / reproduction apparatus to verify the presence of reservation areas and to determine the positions or sizes of the reserved reservation areas. Also, the recording / playback apparatus has the ability to quickly recognize an area containing data and a blank area of the disc by recording SBM # 0 after the recording of TDDS # 0. On the disk, as shown in Figure 2, a TDDS area, a TDFL area and an SBM area are individually formed and the TDDS, TDFL and SBM areas are recorded thereon in grouping units, respectively. However, the recording of the TDDS and the SBM is not limited to these areas, that is, they can be recorded in different areas. Figure 5 illustrates a structure of a single recording layer disk that allows the handling of a data area, according to one embodiment of the present invention. In this mode, an entry zone includes an area in which TDDS and SBM are recorded. When a user wishes to perform defect handling of disk using a recording / playback apparatus and instructs the recording / reproduction apparatus to distribute the reservation areas, the recording / reproduction apparatus distributes reservation areas # 1 and # 2 at the start and end of a recording area. data in predetermined sizes, respectively. Then, the recording / reproduction apparatus registers the distribution information, which indicates the distribution of the reservation areas # 1 and # 2, in the first groupings of the TDDS and the SBM. Figure 6 illustrates a detailed structure of the TDDS + SBM area shown in Figure 5. With reference to Figure 6, a TDDS and an SBM are recorded in a cluster. The TDDS contains the size information, i.e., the area distribution information with respect to each reservation area and the SBM, and the SBM contains a bitmap. After the recording of the area distribution information in a first grouping of the TDDS + SBM area, the bitmap records one bit for the position of the first grouping of the TDDS + SBM area as 1 and the bits for the positions of the others clusters as 0. Figure 7 illustrates a structure of a recording layer single layer handling of a data area, according to an embodiment of the present invention. In this mode, an input area includes a Temporary Disk Management Area (TDMA) area in which both a TDFL area and a TDDS area are recorded, and the disk information area and disk + SBM in which the Disk and disk drive information and an SBM area are recorded. That is, the TDFL and TDDS areas are recorded in a grouping and the disk and disk joined information and SBM are recorded in a grouping. Similar to the embodiments shown in Figures 2 and 5, the user determines the handling of the disk defect using a recording / playback apparatus and instructs the recording / reproduction apparatus to distribute the reservation areas in a recording area. data from a disk. Next, the recording / reproduction apparatus distributes reservation areas # 1 and # 2 at the beginning and end of the data area in predetermined sizes. Next, the recording / reproduction apparatus records the area distribution information indicating the distribution of reservation areas # 1 and # 2 in a first grouping of the TDMA. Figure 8 illustrates a detailed structure of the TDMA shown in Figure 7. The TDMA consists of groupings in which disk defect handling information is recorded. In each grouping, they are recorded a TDDS and a TDFL. The TDDS contains information regarding the positions of the reservation areas, the information that is the area distribution information. Figure 9 illustrates a detailed structure of a disk information area and disk unit + SBM that is shown in Figure 7, according to one embodiment of the present invention. Each cluster contains the disk and disk drive information and the SBM information. The SBM information contains a bitmap. The information regarding the reservation areas is recorded in a first grouping of a TDMA. Then, a bitmap indicates the bits for the first clusters of the TDMA and the disk and disk information and the SBM area with 1 and the bits for the remaining clusters with 0. Figure 10 illustrates a structure of a disk of recording layer xinica that allows the management of a data area, according to an embodiment of the present invention. Unlike the disk according to the modalities described above, the disk of Figure 10 further includes a TDMA # 2 in a data area, in addition to a TDMA # 1 in an input zone. The TDMAs # 1 and # 2 are different from each other because the updated information is recorded in TDMA # 1 either before the ejection of a disc from a recording / playback device or during the initialization of the disc, and the updated information is recorded in TDMA # 2 in operating units during recording of data on the disk. At this point, the units of operation are units in which a verification-after-the-writing method is provided. In the verification-after-the-writing method, the data is recorded in grouping units and subsequently verified. If a TDMA is only distributed in an entry zone, the size of the TDMA is limited, making it difficult in this way to update the information frequently. The number of required information updates can be reduced by updating a TDDS when the disc is ejected from the recording / playback device. However, in this case the update of the TDDS will be incompletely terminated when the electrical power in the recording / playback apparatus is interrupted due to an unexpected accident, such as a power failure during the writing operation. To solve this and / or other problems, the disk of Figure 10 also includes TDMA # 2 in the data area. The TDDS is updated and recorded in TDMA # 2 in units in which the post-verification method is provided. writing, which prepares for a failure during the TDDS update due to an interruption of the power supply. Just before the ejection of the disc, the final defect information and status information regarding the disc are recorded repeatedly in the TDMAs # 1 and # 2, which increases the robustness of the information. The reason for the formation of the TDMA # 2 in the data area is that the frequent updating of information in the TDMA # 2 requires that the TDMA # 2 be spacious. On the other hand, the TDMA # 1 is not required to be spacious and therefore, is formed in the entrance zone (or in the exit zone). If the user does not wish to handle the disk defect using a recording / playback device or does not require the distribution of the TDMA # 2 even if the user wishes to handle the disk defect using the recording / playback device during the disk initialization , TDMA # 2 will not be distributed in the data area and the area distribution information indicating this information is recorded in TDMA # 1. Figure 11 illustrates a detailed structure of a TDMA # 1 that is shown in Figure 10. With reference to Figure 11, a TDFL, a TDDS and a SBM are recorded in the TDMA # 1. More specifically, both TDDS and SBM are recorded in a TDDS + SBM #k grouping and the TDFL is recorded in another grouping (k is an integer larger than 0). The TDMA # 2 has the same construction as the TDMA # 1, and its detailed description will be omitted. Figure 12 illustrates a detailed structure of the TDDS + SBM #k cluster, which is shown in Figure 11, in which both TDDS and SBM are recorded. With reference to Figures 12, the TDDS specifies the positions of a recording condition test area, the disk unit information, a TDFL, reservation areas # 1 and # 2, a TDMA # 2, an area TDDS + SBM for another recording layer and a TDDS + SBM area for another TDMA. If the start and end addresses of each area of the disk were determined, the information regarding the sizes of the reservation areas # 1 and # 2 and the TDMA # 2 regarding its position information would be sufficient. Otherwise, the position information would be indicated with its start and end addresses that correspond to each area of the disk. If the disc had at least two recording layers, an SBM for each recording layer would be required. Figure 13 illustrates a detailed structure of a TDDS + SBM # 0 cluster that contains the disk initialization information that is obtained during the disk initialization. Figure 13 illustrates a case where reservation areas # 1 and # 2 and TDMA # 2 are formed in a data area. With reference to Figure 13, the information regarding the sizes of the reservation areas # 1 and # 2 and the TDMA # 2 is recorded as the disk initialization information. In this case, it is understood that the start and end directions of each area have already been determined. Even if the reservation areas were distributed in the data area and the disk was initialized by recording the area distribution information indicating the distribution, the structure of the data area can be changed by re-initializing the disk and the update of the area distribution information. Figure 14 illustrates a detailed structure of a TDDS + SBM # n + l cluster containing the disk re-initialization information. With reference to Figure 14, the information specifying a change in the sizes of reservation areas # 1 and # 2 and TDMA # 2 is recorded in a TDDS area. Assume that reservation area # 1, TDMA # 2, a user data area and reservation area # 2 are sequentially formed in a data area, and the defect information is recorded in the reservation area # 2 starting from a grouping with the longest address to a grouping with the shortest address. In this case, the re-initialization of the disk is effected to effectively use a recording area between a grouping with the longest address in the user data area and the grouping with the smallest address in the reservation area # 2. In other words, the re-initialization of the disc increases or decreases the size of the reservation area # 2, thus allowing the effective use of the recording area. The disc re-initialization information is recorded at least in a TDDS + SBM grouping that belongs to a TDMA # 1 or TDMA # 2. Subsequently, an SBM that is information regarding a data recording area will be described in greater detail. Figure 15 illustrates a structure of an SBM area according to one embodiment of the present invention. With reference to Figure 15, the SBMs # 0- # n, which provide the data recording area information, are recorded in the SBM area. In this mode, an SBM #i is recorded in a grouping (i is an integer from 0 to n). However, as illustrated in Figures 6-9, the SBM #i can be recorded along with other information in a grouping. Each SBM #i provides the header information that contains an SBM descriptor, an indication of completion and an update counter; and a bitmap #i (i is an integer from 0 to n) that indicates the areas that can be recorded from all the recording areas of the disk in the grouping units. If the data were additionally recorded on the disk and the information in the data recording area changed, each SBM #i, which contains a new bitmap describing the data recording areas, would be generated and recorded. In this case, the update counter represents the nu of times the information in the data recording area is updated. The moment of time when each SBM #i is generated and updated can be determined, in a different way, depending on a program installed in the recording / playback device. However, after recording data on the disc, a new SBM #i must be generated and recorded before ejecting the disc from the recording / playback device. The end indication indicates whether the disk is finalized or not. Figure 16 illustrates a final area SBM according to one embodiment of the present invention. The end indication for the header of an SBM is set to 0 and is recorded along with other information. With Referring to Figure 16, an SBM recorded just before the finalization of the disc is an SBM #n. If a completion command was given from a host, such as a computer, to a recording / playback apparatus, the recording / playback apparatus would indicate the completion of the disc finalization by changing an indication of completion between the information with respect to to SBM #n, which is updated to the last, from 0 to 1, and would record SBM #n once more. If necessary, the recording / playback apparatus could allow no more SBMs to be recorded by recording data such as "ffh" in an area adjacent to the area containing the SBM #n that has the completion indication x 1 ', with which, the additional recording of data on the disk is avoided. A user can maintain the record state of the disc in a moment of time when the finalization of the disc is made, based on an SBM that has the end indication '1'. Even if the data recorded on the finalized disk was changed or new data was added to the original data without permission, it is possible to detect the original data recorded during the finalization of the disk by reference to a bitmap contained in the SBM which has the end indication? ' . Therefore, the data that is added after the completion of the disc can be detected easily. An area in which each SBM #i is recorded is placed in at least one of a data area, an entry zone and an exit zone as shown in Figures 1A and IB. The reservation areas and the TDMAs are distributed in a data area in the above modalities, although an area in which the reservation areas and TDMAs are distributed and the areas distributed in the data area are not limited. For example, a TDMA area and a TDDS area can be further distributed in the data area. Likewise, a TDDS area and an SBM area are distributed in an entrance area in the above modalities although they can be formed in a data area or in the exit area. Although not shown in the figures, a TDFL area can be formed in the data area. In this case, if a user wishes to handle disk defect using a recording / playback device, the user would distribute a reservation area # 1, a reservation area # 2, and the TDFL area and register a TDDS area and a SBM as described previously. The TDFL can be located between the entry area and reservation area # 1, between reservation area # 1 and a user data area, in the middle part of the user data area, between the data area of user and reservation area # 2, and between reservation area # 2 and the area of departure. If the user does not wish to handle the disk defect using the recording / playback device, the distribution of the reservation areas would not be required. However, if the user recorded the data in real time using the disk defect information obtained by scanning a disk, the TDFL area would be required to store the disk defect information. Therefore, the TDFL would be distributed during the initialization of the disk. In the above embodiments according to the present invention, the handling of the reservation areas and the recording of a bitmap are described with respect to a single recording layer disc. However, the present invention can be applied to a double-layer recording disc. A write-only disk according to the present invention includes a TDMA for handling disk defect. However, if the disc were a disc that could be rewritten, the disc would include a DMA but not a TDMA. Therefore, a recording / reproducing device of a disc capable of being rewritten is not capable of reproducing / recording data from / on a disc with a TDMA, that is, a disc compatibility problem would be caused. For a solution in disk compatibility, a TDFL recorded in a TDDS area would be copied to a TDMA before the finalization of the disc. Figure 17 is a block diagram of a recording / reproducing apparatus according to an embodiment of the present invention. With reference to Figure 17, the recording / reproducing apparatus includes a recording / reproducing unit 1, a controller 2, and a memory 3. Under the regulation of the controller 2, the recording / reproducing unit 1 records the data in a disk 100 according to the present invention and performs the reading of the data from the disk 100 to verify the accuracy of the recorded data. The controller 2 handles a data area of the disk 100. Likewise, the controller 2 performs a verification-after-write method, in which the data is recorded on the disk 100 in predetermined units and the accuracy of the Recorded data is checked to detect if an area of the disk 100 had a defect. More specifically, the controller 2 records the user data on the disk 100 in predetermined units and verifies the user's recorded data in order to detect an area of the disk 100 in which there is a defect. Next, controller 2 creates a Temporary Defect List (TDFL) and a Disk Time Defect Structure (TDDS) that specifies a position of the area with the defect. Next, controller 2 stores temporarily the TDFLs and TDDSs created in the memory 3. When the amount of the stored TDFLs and TDDSs reaches a predetermined level, the controller 2 registers the TDFL and TDDS in a predetermined area, for example, a Temporary Disk Management Area (TDMA) ), disk 100. At this point, disk 100 includes disks according to the modalities mentioned above of the present invention. When a user decides to perform the disk defect handling using the recording apparatus as shown in Figure 17 and instructs the recording apparatus to distribute the reservation areas in a data area, the recording apparatus distributes the areas of reserve, for example, a reservation area # 1 and a reservation area # 2, in predetermined portions of the data area of the disk, for example, at the beginning and end of the data area. Then, the recording / reproduction apparatus records the area distribution information, which indicates the distribution of reservation areas # 1 and # 2, in a first grouping of a TDDS. The area distribution information can specify the sizes of the distributed reservation areas # 1 and # 2. If the start and end addresses of reservation areas # 1 and # 2 were determined, for example, when reservation areas # 1 and # 2 are located at the beginning and at the end of the data area, In the respective manner, the recording apparatus can recognize the distribution of reservation areas # 1 and # 2 and also the positions and sizes of reservation areas # 1 and # 2 only on the basis of information regarding area sizes. Reserve For this reason, when the start and end directions of reservation areas # 1 and # 2 are not determined, these addresses are determined and recorded or the information regarding the sizes of reserve areas # 1 and # 2 would be recorded in the first grouping of the TDDS. A method of handling a data area of a disk using a recording apparatus according to an embodiment of the present invention will be described below with reference to Figures 17 and 18. Figure 18 is a flow chart illustrating a method of handling a data area of the disk 100, according to an embodiment of the present invention. The initialization of the disk 100 is effected in response to the user input before the recording of user data on the disk 100 (operation 110). Then, an instruction as to whether or not the distribution of at least one section of a data area of disk 100 for handling disk defect is required is transmitted to controller 2 from a host apparatus, such as a computer. (operation 120). How I know mentioned previously, the distribution of a section, such as a reservation area or a TDMA, of the data area for handling disk defect is considered to be well known to those skilled in the art. Alternatively, a recording / playback apparatus other than the host apparatus has the ability to determine whether at least one section of the data area will be distributed. Next, the controller 2 controls the recording / reproduction unit 1 to record the area distribution information, which describes whether or not at least one section of the data area has been distributed, in a predetermined area of the disk 100 (operation 130). The area distribution information may specify a size of at least one portion for handling disk defect. Assuming that, as shown in Figure 2, at least one section for handling disk defect includes a reservation area # 1 and a reservation area # 2 and a position of beginning reservation area # 1 and a position of completion of reservation area # 2 have been located at the beginning and at the end of the data area, respectively. In this case, a recording device has the ability to recognize not only the distribution of reservation areas # 1 and # 2, but also its location and sizes only based on the information regarding the sizes of the reservation areas #1 and 2.

When a user does not require the handling of disk defect when a recording apparatus is used and at least one section is not distributed, such as a reserved area of the data area, the area distribution information indicating the size at least of a section like 0 is recorded in a predetermined area of disk 100. The area distribution information can be recorded in a TDDS formed at least in one of an input zone, a data area and an output zone of the disk 100. Also, a TDDS can be recorded in several areas as shown in Figures 3, 6, 8 and 12. After the initialization of the disk 100 is completed by recording the area distribution information on the disk 100 in the operation 130, the recording apparatus could record the user data in the disk 100 and perform the disk defect handling . After operation 130, the recording apparatus records the user data in a user data area of the disk 100 and performs the disk defect handling using the reservation areas and the TDMA (operation 140). Even after the initialization of the disk, the re-initialization of the disk 100 allows the change of a structure of the data area of the disk 100. Next, disk 100 is re-initialized in response to user input (operation 150). So, a command is entered that instructs the structure of the data area to be redefined by the distribution of new areas in it, from the host apparatus of the controller 2. Next, the controller 2 regulates the recording / reproduction unit 1 to register the area distribution information with respect to the new areas in a predetermined area of the disk 100, whereby the area distribution information is updated (operation 160). The information, for example, an SBM, with respect to the areas containing the data is recorded on disk 100. The header information of the SBM includes a completion indication that represents whether more data can be recorded on a disk. When the end indication is 1, a change in the record state of the disc can be verified and the original data before the change can be detected, using a bitmap corresponding to the end indication 1. If the user does not wish to perform the disk defect handling using the recording device, no data would be recorded in a DMA. Therefore, the area distribution information recorded in the TDMA would be recorded in the DMA without considering whether the completion of the disk is complete or not. Because a disc that can be rewritten does not include a TDDS area, it is not possible to reproduce data to Starting from a disc only of a writing with a TDMA containing the area distribution information, using a disk reproduction apparatus capable of being rewritten, due to compatibility problems. In order to solve this and / or other problems, the information recorded in the TDMA is registered in the DMA during the finalization of the disc, with which, the compatibility of the disc is allowed. If the disk defect handling used by the recording device was not required, the area distribution information recorded in the TDMA would be registered in the DMA before the end of the disc, which would allow the reproduction of the data from the disk that uses the disk reproduction apparatus that can be rewritten. For example, although not shown in the figures, a reproduction apparatus, which reads the data from disk 100 containing the area distribution information, according to the present invention, has a structure similar to the structure of the apparatus of recording of Figure 17 except that the playback apparatus includes only one playback unit, only for reading data, in place of the recording / playback unit 1 of the recording / playback apparatus. When the disk 100 is loaded into the reproduction apparatus according to the present invention, the reproduction apparatus has access to an area default, for example, a TDMA, which contains the last updated area distribution information to read the latest updated area distribution information. Then, the reproduction apparatus obtains, from the last updated area distribution information, information regarding the location of at least one section of the data area for the handling of disk defect. As mentioned previously, at least one section includes the TDMA and the reservation areas. Because the reproduction apparatus has the ability to completely recognize a structure of the data area based on the area distribution information, the reproduction apparatus can read not only the user data, but also the data, for the disk defect management, which are stored in the TDMA and the reserved areas distributed in the data area. As described above, according to the present invention, the area distribution information with respect to a structure of the data area is recorded on a write-only disc, thus, allowing a recording / reproduction apparatus recognize the data area structure. Therefore, the distribution of areas, such as a reservation area, for the handling of disk defect other than an area that stores user data in the data area, allows efficient use of the disk.

Also, after the disk initialization, the structure of the data area can be changed if the area distribution information is updated through the re-initialization of the disk. In addition, a bitmap is recorded, which specifies the dataable areas, in a predetermined area of the disk, whereby the recording / playback apparatus is allowed to quickly access a desired area. The bitmap also allows the recording / playback apparatus to check if there is a change in the recording state of the disc and to detect the data originally recorded before the change, the change that is happened by recording additional data on the disc . Although a few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in this embodiment without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents. It is noted that in relation to this date the best method known by the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (8)

CLAIMS Having described the invention as above, the content of the following claims is claimed as property:

1. A write-only disk that includes an input zone, a data area and an output zone, characterized in that it comprises: a predetermined area that stores area assignment information indicating whether at least one section of the data area is assigned to disk defect management wherein the predetermined area is formed into a temporary disk defect structure (TDDS) of a temporary defect management area (TDMA) and the area assignment information recorded in the fault structure of Temporary disk (TDDS) is recorded in a defect management area (DMA).

2. The disc in accordance with the claim 1, characterized in that the area assignment information comprises information specifying the size of at least one section of the data area.

3. A recording apparatus characterized in that comprises: a recording and / or playback unit which records data or reads data from a single write-only disc; and a controller which controls the recording and / or reproducing unit to record area assignment information, which indicates whether at least a section of the disk data area is allocated for disk defect management in a disk structure. temporary disk defect (TDDS) of a temporary defect management area (TDMA) formed in a predetermined area of the disk, where the TDDS comprises position information of a temporary defect list (TDFL) and the TDDS and the TDFL is record in a defect management area (DMA).

4. The apparatus according to claim 3, characterized by the area assignment information includes information specifying a size of at least one section.

5. An apparatus for recording data and / or reading data on a single writing disc, characterized in that it comprises: a reading unit which reads data from the disk; and a controller which controls the unit read to read area assignment information, which indicates whether at least one section of the disk data area is allocated for disk defect management in a temporary disk defect structure (TDDS) of a defect management area Temporary (TDMA) formed in a predetermined area of the disk, wherein the TDDS comprises position information of a temporary defect list (TDFL) and the TDDS and the TDFL are recorded in a defect management area (DMA).

6. The apparatus according to claim 5, characterized in that the area assignment information comprises information specifying a size of at least one section.

7. The apparatus according to claim 3, characterized in that at least one section of the data area allocated for disk defect management includes an available area, a temporary disk defect structure area (TDDS), a list area of temporary defects (TDFL) or temporary defect management area (TDMA).

8. The apparatus according to claim 5, characterized in that at least one section of the data area allocated for disk defect management includes an available area, a temporary disk defect structure area (TDDS), a list area of temporary defects (TDFL), a temporary defect management area (TDMA).