JPH09251721A - Optical disk medium and optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of necessary memories and to reduce cost by distributing defect management areas for each zone in a disk having a large capacity and defect management information. SOLUTION: A disk definition structure DDS and primary and secondary defect lists PDL and SDL are provided as defect management areas in plural zones formed by dividing a disk 1. For recording, an optical head 3 is sent to the zones, the PDL and the SDL are read and reading results are recorded in a detect management information memory 6 by an information recording/ reproducing means 5. When the recording unit of an address position to be recorded is registered in the PDL, this is written in the recording unit of next address. When the recording unit is registered in the SDL, information is written in a replacing recording unit for a defect unit. After writing, when a detect sector is discovered, this is registered in the SDL and information to be recorded is recorded in a specified spare area. Thus, for a disk having large detect management information, a defect management region is allocated to each zone and thereby the number of necessary memories is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc medium and an optical disc device, and more particularly to a recordable optical disc in which a recording area is divided into a plurality of zones by circumferential boundaries. The present invention relates to an optical disc medium having a spare area in which a recording unit as a substitute for a defective recording unit of a disc can be allocated, and an apparatus thereof.

[0002]

2. Description of the Related Art A format of a data zone of a conventional optical disc will be described. Figure 8 is STANDARD E
CMA-201 DATA INTERCHANGE O
N 90mm OPTICAL DISK CARTRID
It is a figure which shows the structure of the data zone of the optical disk described in GES. It should be noted that although this standard describes a read-only type, a partially recordable type, and a recordable type, only the recordable type will be described here. In the figure, the data zone has four defect management areas (Defect Mana).
). Part 2
One is placed in front of the user area and the latter two are placed behind the user area. The buffer tracks are arranged on the inner peripheral side of the defect management area 1 and the outer peripheral side of the defect management area 4. The area sandwiched between the defect management area 2 and the defect management area 3 is called a user area, and user data is recorded therein. In each defect management area, a disk definition structure (Disk Definition)
Structure: DDS) Primary defect list (Pr)
image Defect List (PDL), secondary defect list (Secondary Defect Lis)
t: SDL) is included. The DDS is recorded in the first sector of each DMA after the disc initialization is completed. The content stores a start address of PDL and SDL in addition to a code indicating a disc type for each zone such as recordable and read-only. The PDL contains the addresses of all defective sectors detected at initialization. SDL is PD
It is located immediately after L and contains the address of the defective sector and the address of the replacement sector for managing the defective sector detected during recording. Thus, PDL and SDL
Is defect (management) information for managing a defective sector on the optical disc, and the sizes of the PDL and SDL are determined by their contents. The same PDL and SDL are recorded in the four defective areas on the optical disc.

Next, a slip algorithm and a linear replacement algorithm, which are algorithms used when registering a defective recording area in PDL and SDL, will be described. First, the slip algorithm will be described. This algorithm is the method performed when the initialization is performed.
If a defective sector is found during initialization, the defective sector is replaced with the first non-defective sector, that is, the defective sector is slipped. The last sector of a zone is in the spare area of that zone. The address of the defective sector is registered in PDL. If no defective sector is found during initialization, the PDL is empty. Thus, if many defective sectors are found during initialization, the spare area in each zone decreases. If the spare area is used up, the defective sector is processed by the linear replacement algorithm described below.

Next, the linear replacement algorithm will be described. This algorithm is also executed when a defective sector is found after initialization or when the spare area is exhausted by the slip algorithm during initialization. The defective sector is replaced with the first available spare sector in the zone. if,
If no spare sector remains in the zone, replace it with the first available spare sector in another zone. Then, the addresses of the defective sector and the spare sector to which the sector is moved are registered in the SDL. However, the sector address recorded in PDL is not recorded in SDL. If the replacement sector registered in the SDL later becomes defective,
Register a new replacement sector for the defective sector in the SDL.

Next, a procedure for writing data on the disc will be described. If data is written to a sector in the zone and the sector address is registered in the PDL, it is written to the sector at the next address. Further, when registered in the SDL, data is written in the replacement sector for the defective sector.

In the apparatus for driving the optical disk medium as described above, before writing and reading, the S
The DL and PDL tables are read and stored in the memory, and the replacement sector corresponding to the defective sector is accessed based on the defect information stored in the memory.

[0007]

As described above, the conventional optical disc medium and optical disc device have the primary defect list and the secondary defect list on the innermost and outermost circumferences of the disc, respectively. Since the defect management information is read at once before recording / playback and stored in the memory, if the capacity of the optical disk is large, the defect management area grows in proportion to the disk capacity. There is a problem in that a large capacity of a memory for storing the defect management information thus prepared is required, and the cost increases accordingly.

Further, when it is attempted to use a memory having a small capacity, a part of the defect management information is stored (read) in the memory, and it becomes necessary to obtain the defect management information which is not stored in the memory. Each time, it is necessary to seek the optical head of the optical disk device to the inner circumference or the outer circumference of the disk, which causes a problem that extra time is required for recording and reproducing.

The present invention has been made to solve the above problems, and an object thereof is to obtain an optical disk medium and an optical disk device in which a defect recording unit can be easily managed even for an optical disk medium having a large capacity. And

[0010]

An optical disk medium according to claim 1 is a recordable optical disk medium in which a recording area is divided into a plurality of zones by a circumferential boundary, and a defect of the disk for each zone. In an optical disc medium having a spare area capable of allocating a recording unit as an alternative to the recording unit, address information of a defective recording unit existing in each zone and an alternative spare area of the defective recording unit are provided for each zone. It is characterized in that it has a defect management area in which address information is recorded.

The disk medium according to claim 2 is provided with two or more defect management areas in which defect management information having the same content is recorded for each zone.

According to another aspect of the optical disk medium of the present invention, when the spare area of a specific zone for recording data is used up and there is no free area, when a spare area is needed, the unused area in the zone other than that zone is not used. One or more spare areas having the areas of

According to another aspect of the optical disc medium of the present invention, one defect of a defect management table having only address information of the defect recording unit and a defect management table having address information of the defect recording unit and address information of a spare spare area. Two types of tables having different sizes of information regarding recording units are provided, and each zone is provided with one or more spare areas equal to or smaller than the size of the spare area capable of address management in the latter table.

According to another aspect of the optical disk medium of the present invention, the size of the defect management area in each zone is the same, and the address information of the defect recording unit that can be recorded in each zone and the address information of the spare spare area of the defect recording unit are recorded. It is an equal amount.

According to another aspect of the optical disk medium of the present invention, the size of one or more defect management areas in each zone is substantially proportional to the data recording capacity of each zone.

An optical disk medium according to a seventh aspect of the present invention has a defect management area in which each zone can record a defect management table of the zone and a defect management area in which a defect management table of a zone preceding the zone can be recorded, and / or , A defect management area in which a defect management table of a zone behind the zone can be recorded.

The optical disk device according to claim 8 is a recordable optical disk in which a recording area is divided into a plurality of zones by a circumferential boundary, and recording is performed for each zone as an alternative to a defective recording unit of the disk. A defect management area having a spare area in which a unit can be allocated and having, for each zone, address information of a defect recording unit existing in the zone and address information of an alternative spare area of the defect recording unit In an apparatus for driving an optical disc medium, when recording data in a recording unit of a specific zone or reproducing data from a recording unit of a specific zone, defect information of a defect management area of the zone is recorded as defect information of the recording unit. It is characterized in that it is provided with a defect management control unit for performing read address management only for the read.

According to a ninth aspect of the present invention, in the case where the spare area of a specific zone for recording data is all used, when the spare area is needed, the spare area is recorded in an unused spare area other than the zone. It is designed to be controlled to do so.

An optical disk device according to a tenth aspect is a recordable optical disk medium in which a recording area is divided into a plurality of zones by a circumferential boundary, and each zone is a substitute for a defective recording unit of the disk. In an optical disk drive for driving an optical disk medium having a spare area in which recording units can be allocated, when a defective recording unit exists in a certain zone, defect information regarding the defective recording unit is written in a defect management area of the zone. It is characterized by including a defect management control unit that controls recording so as to record also in a defect management area in a zone before and / or after the zone.

According to the eleventh aspect of the present invention, the defect information in the transfer destination zone is read in advance from the transfer source zone when transferring from one zone to the adjacent zone during recording and reproduction.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. Embodiment 1. 1 is a diagram showing the structure of a data zone of an optical disc medium according to a first embodiment of the present invention. The zone shown in FIG. 1 is a plurality of areas divided according to the radial position of the disk. Further, each zone has a defect management area. Each defect management area has a disc definition structure (Disk Definition Structure).
e: DDS) Primary Defect List (Primary De)
defect list (PDL), secondary defect list (Se)
The secondary defect list (SDL) is included. The SDL is placed immediately after the PDL. SDL,
The size of the PDL depends on its content. The DDS is recorded in the first recording area of each defect management area after the initialization of the disc is completed. In addition to the code that indicates the type of disc for each zone, such as recordable and read-only contents, P
The start addresses of DL and SDL are stored. The PDL contains the addresses of all defect recording areas detected at the time of initialization. The SDL manages the defect recording area detected at the time of recording, and includes the address of the defect recording area and the address of the spare spare area. In the above processing, as long as the spare area remains for each zone, the defect recording area is managed in the defect management area in the zone including the recording area. In the PDL of each zone, the defective recording unit, that is, the defective recording sector found in the initialization included in the zone is recorded, and the address is managed by the slip algorithm. If all spare areas are exhausted at the time of initialization, the spare area in another zone is used and the address is managed by the linear replacement algorithm.

In the defect management table PDL having only the address information of the defect recording unit and the defect management table SDL having the address information of the defect recording unit and the address information of the spare spare area, the size of the spare area is SDL. The size should be equal to or smaller than the size of the address management area. Furthermore, the size of the defect management area in each zone is made the same, and the amount (number) of the address information of the defect recording unit that can be recorded in each zone and the address information of the spare spare area of the defect recording unit are made equal.

FIG. 2 is a diagram showing a block configuration of the optical disk device according to the first embodiment of the present invention. In the figure, 1 is an optical disk, 2 is a disk motor for rotating the optical disk 1, 3 is an optical head for irradiating a laser on the optical disk for recording and reproduction, and 4 is a seek for positioning the optical head at a desired zone position, that is, a seek. A feed motor 5 for operation, information recording / reproducing means for performing error correction processing, modulation / demodulation, etc. of reproduction data from the optical head and recording data to the optical head, and 6 stores defect management information read from the optical disk. A defect management information memory for storing a defect, and a defect management control unit 7 for performing defect management.

Next, a method of recording information on the optical disk will be described centering on the defect management processing section 7 in this figure. First, the optical head 3 is moved by the feed motor 4 to the zone to be recorded. Next, the PDL and SDL are read from the defect management area in that zone and stored in the defect management information memory 6 via the information recording / reproducing means 5. The recording unit of the address position to be recorded in the zone is
When registered in the PDL, it is written in the recording unit of the next address. When registered in the SDL, information is written in the replacement recording unit for the defective recording unit. Further, after writing, if a defective sector is found by an error correction / detection means (not shown), the sector is registered in the SDL, and the information to be recorded in the defective sector is a spare area specified by a linear replacement algorithm. To record. Next, a method of reproducing information on the optical disc will be described centering on the defect management processing unit 7 in this figure.
First, the optical head 3 is moved by the feed motor 4 to the zone to be reproduced. Next, the PDL and SDL are read from the defect management area in that zone, and the information recording / reproducing means 5 is read.
To the defect management information memory 6 via. The recording unit of the address position to be reproduced in the zone is PD
If it is registered in L, it is read from the recording unit of the next address. When registered in the SDL, information is read from the replacement recording unit for the defective recording unit.

In such a form, at least the address information that can be registered in the defect management area in a specific zone has a size that allows recording of all the addresses in the replacement area (spare area) of the zone. The defect management table includes primary defect management information (PDL) and secondary defect management information (S
DL). The primary defect management information includes the address of the defective recording unit, whereas the secondary defect management information has the address of the spare area allocated as the alternate area in addition to the address of the defective recording unit. Therefore, the secondary defect record management information requires a larger area than the case where the same defect record unit is registered. That is, it is possible to register even if no defect recording unit is detected at the time of initialization, that is, there is no primary defect management information by the slip algorithm and all spare areas are secondary defect management information by the linear replacement algorithm. The size of the defect management area and the spare area must be determined.

By adopting such a form, for an optical disc having a large capacity and therefore a large amount of defect management information, the defect management area is distributed for each zone of the disk, so that the information of the defect management area of the optical disk device is obtained. It is possible to reduce the required memory for storing the data, and it is possible to reduce the cost. Further, since the defect management area is closer to the user area to be accessed than the conventional optical disk, the time required for the defect management processing of the optical disk device can be shortened.

Embodiment 2. In the first embodiment, each zone has one management area at the beginning, but in the present embodiment, each zone has two defect management areas at the beginning. The two pieces of defect management information are the same. FIG. 3 is a diagram showing a structure of a data zone of an optical disc medium according to a second embodiment of the present invention. In the figure, the user area and the spare area are the same as those described in the first embodiment.

By adopting such a form, even if one defect management information in the zone is destroyed and the device becomes unreadable, the defect management can be properly maintained by reading the other defect management area. You can

Embodiment 3 In the second embodiment, each zone has two defect management areas at the beginning, but in the present embodiment, each zone has a defect management area at the beginning and at the end. The two pieces of defect management information are the same. FIG. 4 is a diagram showing a structure of a data zone of an optical disc medium according to a third embodiment of the present invention. In the figure, the user area and the spare area are the same as those described in the first embodiment. In the third embodiment, one defect management area is provided at the beginning and the end of each zone, but a plurality of management areas may be provided at each of the beginning and the end.

By adopting such a form, when an attempt is made to read the data of a specific zone and the optical head for reading the data of the optical disc is located outside the zone,
Always pass through the defect management area on the outer periphery during zone seek. On the contrary, when the optical head is located inside the zone, the defect management information on the inside is always passed during zone seek. Therefore, the data read time can be shortened by reading the defect management area with the shorter access time.

Embodiment 4 FIG. Embodiments 1, 2, 3
Then, when the spare area in one zone is exhausted, even if the spare areas in other zones remain, it is not possible to register any more defects. In the fourth embodiment, in such a case, a spare area in another zone has a free space,
Replace the defect recording unit. FIG. 5 is a diagram showing defect management of an optical disc medium according to a fourth embodiment of the present invention. In the figure, when the recording unit of the user area address xx is defective, the alternative area is originally secured in the spare area of the defective zone. However, since the spare area of the defective zone is completely used here, the spare area of address yy of the spare area of another zone is used. Another zone is selected from the zone closest to the zone having the defective recording unit and the spare area remaining.

By adopting such a form, even when the spare area of a specific zone is exhausted, the replacement process can be maintained as long as the spare area of another zone exists.

Embodiment 5 FIG. Embodiments 1 and 2,
Although the sizes of the defect management areas in the zones 3 and 4 are the same, the sizes of the zones may be different. In the fifth embodiment, when the sizes of the zones are different from each other, the sizes of the defect management area and the spare area are determined in proportion to the size of the user area of the zone. FIG. 6 is a diagram showing a structure of a data zone of an optical disc medium according to a fifth embodiment of the present invention. In this figure, for example, it is assumed that there are three user areas A, B, and C having a size of 1: 1.2: 1.5.
The defect management areas A and B are proportional to the sizes of B and C, respectively.
The sizes of B and C and spare areas A, B and C are also 1: 1.2:
Set to 1.5.

The defect rate of the defect recording unit in the user area is considered to be constant regardless of the zone. Therefore, by adopting such a form, that is, by setting the ratio of the defect management area to the spare area to the user area to be constant, the usage rate of the spare area also becomes substantially constant, and the spare area of a specific zone can be replaced with other areas. You can prevent it from being used up faster than things.

Sixth Embodiment FIG. 7 is a diagram showing a structure of a data zone of an optical disc medium according to a sixth embodiment of the present invention. As shown in the figure, four defect management areas are provided in each zone. Two of them are in front of the user area and the other two
One is attached after the user area. Of the two defect management areas before the user area, one is the defect management information of that zone, and the other is the defect management information of the preceding zone. Further, of the two defect management information behind the user area, one is the defect management information for the zone, and the other is the defect management information for the next one. Further, both the top two defect management areas of the topmost zone are the defect management areas of the zone. The two defect management areas behind the backmost zone are both the defect management areas of that zone.

The degree of multiplicity of the defect management area in each zone is determined from the medium defect characteristics and given. For example, it is also possible to have one management table for each of the respective zones, the front zone, and the rear zone.

By adopting such a form, there are two defect management areas in a certain zone in the own zone, one at the end of the previous zone and one at the beginning of the rear zone. Even if a data error occurs due to a defect, dust, or medium deterioration, the data reliability of the defect management area can be ensured.

Further, since the defect management area of the next zone can be read at the end of the previous zone, ZCLV (Zon, which is a zone format in which the number of revolutions is different for each zone).
edConstant Linear Velocity
In the y) type disc, the apparatus completes the recognition of the information of the defect management area of the next zone during the disc rotation settling waiting time (time until the number of revolutions of the disc stabilizes) accompanying the zone shift, It is possible to reduce the time required to record / play back after entering the new zone.

[0039]

Since the present invention is constructed as described above, it has the following effects.

In the optical disc medium according to the first aspect of the present invention, the defect management area is dispersed in each zone of the disc for the optical disc having a large capacity and therefore a large amount of defect management information. It is possible to reduce the required memory for storing the information in the management area, and it is possible to reduce the cost. Also,
Since the defect management area is closer to the user area to be accessed than the conventional optical disk, the time required for the defect management processing of the optical disk device can be shortened.

Even if one defect management information in the zone is destroyed and the apparatus becomes unreadable, the defect management can be maintained correctly by reading the other defect management area.

Further, even when the spare area of a specific zone is exhausted, the replacement process can be maintained as long as the spare area of another zone exists.

Since each zone has at least one spare area which is equal to or smaller than the size of the spare area which can be address-managed by the defect management table having the address information of the defect recording unit and the address information of the spare spare area, the zone concerned. All the spare areas can be managed by the defect management table, and the spare areas can be effectively used.

Since the size of the defect management area in each zone is the same and the address information that can be recorded in each zone is the same, it is easy to manage the memory address when writing / reading the defect management information in the memory. Become.

Further, by keeping the ratio of the defect management area to the spare area to the user area constant, the usage rate of the spare area becomes almost constant, and the spare area of a specific zone is used up faster than other areas. Can be prevented.

Further, in each zone, a defect management area in which a defect management table of the zone can be recorded and a defect management area in which a defect management table of a zone before the zone can be recorded,
And / or, since the defect management area capable of recording the defect management table of the zone behind the zone is provided, when the data reading optical head is located on the outer periphery of the zone when reading the data of the specific zone, Always pass through the defect management area on the outer periphery during zone seek.
On the contrary, when the optical head is located on the inner side of the zone, the defect management information on the inner side is always passed during zone seek. Therefore, the data read time can be shortened by reading the defect management area with the shorter access time. In addition, the defect management area of a zone is
Since there are two locations in its own zone, one location at the end of the previous zone and / or one location at the beginning of the back zone, it is at least tripled, and even if a data error due to defects, dust, or medium deterioration occurs. The data reliability of the defect management area can be secured. Furthermore, since the defect management area of the next zone can be read at the end of the previous zone, ZCLV (Zon (Zon
ed Constant Linear Velocity
In the y) type disc, the device has completed the recognition of the information in the defect management area of the next zone during the disc rotation settling time, etc. accompanying the zone transition, and recording / playback is possible after entering the new zone. It becomes possible to reduce the time until it becomes.

In the optical disc apparatus of the present invention, when data is recorded in a recording unit of a specific zone or when data is reproduced from a recording unit of a specific zone, the defect management area of the zone is recorded as recording unit defect information. Since only the defect information is read and the address management is performed, it is possible to reduce the required memory for storing the information in the defect management area, and it is possible to reduce the cost.

Further, when the spare area of the specific zone for recording data is all used and further spare area is required, control is performed so as to record in an unused spare area other than the zone. Since it is configured, even if the spare area of a specific zone is exhausted, the replacement process can be maintained as long as the spare area of another zone is available.

When a defect recording unit exists in a zone, defect information regarding the defect recording unit is recorded in the defect management area of the zone, and the defect management of the zone before and / or after the zone is performed. Since the data is also recorded in the area, when reading the data of a specific zone, when the data reading optical head is located on the outer circumference of the zone, the data always passes through the outer defect management area during zone seek. . On the contrary, when the optical head is located on the inner side of the zone, the defect management information on the inner side is always passed during zone seek. Therefore, the data read time can be shortened by reading the defect management area with the shorter access time. Further, since the defect management area of a certain zone exists at two places within the own zone, and at each end at the end of the preceding zone and / or at the beginning of the succeeding zone, it is at least tripled or quadrupled, Even if a data error occurs due to a defect, dust, or medium deterioration, the data reliability of the defect management area can be secured. Further, since the defect management area of the next zone can be read at the end of the previous zone, ZCLV (Zoned Cons), which is a zone format in which the number of revolutions differs for each zone.
In the tan linear velocity) type disc, the device completes the recognition of the information in the defect management area of the next zone during the disc rotation settling time, etc. accompanying the zone transition, and the recording / reproduction is performed after entering the new zone. It will be possible to reduce the time until it becomes possible.

In addition, when a defect recording unit exists in a certain zone, defect information regarding the defect recording unit is recorded in the defect management area of the zone, and defects in the zone before and / or after the zone are recorded. Since the control is made so that the data is also recorded in the management area, ZCLV (Zone
d Constant Linear Velocity
In the y) type disc, the device has completed the recognition of information in the defect management area of the next zone during the disc rotation establishment waiting time due to zone transition, etc., enabling recording and reproduction after entering the new zone. It becomes possible to reduce the time until it becomes.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a data zone of an optical disc medium according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of the optical disc device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a structure of a data zone of an optical disc medium according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a structure of a data zone of an optical disc medium according to a third embodiment of the present invention.

FIG. 5 is a diagram showing defect management of an optical disc medium according to a fourth embodiment of the present invention.

FIG. 6 is a diagram showing a structure of a data zone of an optical disc medium according to a fifth embodiment of the present invention.

FIG. 7 is a diagram showing a structure of a data zone of an optical disc medium according to a sixth embodiment of the present invention.

FIG. 8 is a diagram showing a structure of a data zone of a conventional optical disc medium.

[Explanation of symbols]

1 optical disk, 2 disk motor, 3 optical head,
4 feed motor, 5 information recording / reproducing means, 6 defect management information memory, 7 defect management information control section.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Sugano 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd. (72) Kenji Goshima 2-3-2 Marunouchi, Chiyoda-ku, Tokyo 3 Within Ryodenki Co., Ltd. (72) Inventor Sadanobu Ishida 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Sanryo Denki Co., Ltd.

Claims (11)

[Claims] 1. A recordable optical disc medium in which a recording area is divided into a plurality of zones by a circumferential boundary, and a recording unit as a substitute for a defective recording unit of the disc is assigned to each zone. In an optical disc medium having a spare area capable of being recorded, a defect management area in which address information of a defect recording unit existing in the zone and address information of an alternative spare area of the defect recording unit are recorded is provided for each zone. An optical disk medium characterized by the above. 2. The disk medium according to claim 1, wherein
An optical disc medium comprising two or more defect management areas in each of which the same defect management information is recorded. 3. The disk medium according to claim 1, wherein
When all the spare areas of a specific zone for recording data are used and there is no free area, if more spare areas are needed, one or more spare areas having unused areas other than the zone are provided. An optical disk medium characterized by the above. 4. The optical disc medium according to claim 1, comprising a defect management table having only address information of the defect recording unit, and a defect management table having address information of the defect recording unit and address information of a spare spare area. Two types of tables having different sizes of information regarding one defect recording unit are provided, and each zone is provided with one or more spare areas equal to or smaller than the size of the spare area capable of address management in the latter table. Optical disc media. 5. The optical disc medium according to claim 1, wherein the size of the defect management area in each zone is the same, the address information of the defect recording unit that can be recorded in each zone, and the address of the spare spare area of the defect recording unit. An optical disk medium having the same amount of information. 6. The optical disc medium according to claim 1, wherein the size of one or more defect management areas in each zone is substantially proportional to the data recording capacity of each zone. 7. The optical disc medium according to claim 1, wherein a defect management area in which a defect management table of the zone can be recorded in each zone, and a defect management area in which a defect management table of a zone before the zone can be recorded, And / or an optical disc medium having a defect management area capable of recording a defect management table of a zone behind the zone. 8. A recordable optical disc in which a recording area is divided into a plurality of zones by a circumferential boundary, and a recording unit as a substitute for a defective recording unit of the disc can be assigned to each zone. Device for driving an optical disk medium having a spare area and having a defect management area for each zone, which has address information of a defective recording unit existing in the zone and address information of an alternative spare area of the defective recording unit In the case of recording data in a recording unit of a specific zone, or reproducing data from a recording unit of a specific zone,
An optical disk device comprising a defect management control unit for reading only defect information in a defect management area of the zone as recording unit defect information and performing address management. 9. The optical disk device according to claim 8, wherein when the spare area of a specific zone for recording data is all used and an additional spare area is required, an unused spare area other than the zone is used. An optical disk device characterized by being controlled so as to record onto an optical disk. 10. A recordable optical disc medium in which a recording area is divided into a plurality of zones by a circumferential boundary, and it is possible to assign a recording unit as a substitute for a defective recording unit of the disc for each zone. In an optical disc device that drives an optical disc medium having a different spare area, if a defective recording unit exists in a certain zone, the defect information regarding the defective recording unit is recorded in the defect management area of the zone and And / or a defect management control unit for controlling recording to a defect management area of a rear zone. 11. The optical disk device according to claim 10, wherein when recording and reproducing, when moving from one zone to an adjacent zone, defect information in the transfer destination zone is read out from the transfer source zone in advance. Optical disk device.