Recording/reproducing apparatus, recording/reproducing method, and information storage medium therefor

• US 20080165647A1
• Filed: 07/25/2007
• Published: 07/10/2008
• Est. Priority Date: 01/09/2007
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Hwang, Sung Hee, KWON, Joon-hwan, Lee, Kyung Geun
• Application Number:
  US11/782,855
• Publication Number:
  US 20080165647A1
• Time in Patent Office: Days
• US Class Current: 369/53.17
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2020/1893 using linear replacement to relocate data from a defective block to a non-contiguous spare area, e.g. with a secondary defect list [SDL]
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/235 Multilayer discs, i.e. multiple recording layers accessed from the same side
• CPC Class Codes: G11B 2220/2537 Optical discs
• CPC Class Codes: G11B 7/00736 Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082

Abstract

A recording/reproducing apparatus and a method of easily managing a defect in a multi-layer information storage medium, and an information storage medium therefor. The information storage medium includes a user data area for recording user data, and a spare area for recording replacement data, which replaces a defective data block when a defect occurs in data recorded in the user data area, wherein the replacement data is recorded in the same recording layer that the defective data block is recorded.

Claims

1. An information storage medium having a plurality of recording layers used by a recording/reproducing apparatus, the information storage medium comprising:

a user data area to record user data; and

a spare area to record replacement data that replaces a defective data block detected in the user data area,

wherein the replacement data is recorded in the same recording layer as the defective data block.

2. The information storage medium of claim 1, wherein defect information containing information about the defective data block and the replacement data is recorded in at least one recording layer.

3. The information storage medium of claim 2, wherein the defect information includes information about the recording layer in which the defect information is recorded.

4. The information storage medium of claim 2, wherein the defect information comprises:

an identifier of a defect list;

a layer number of the defect list; and

at least one defect list entry;

wherein each defect list entry comprises address information regarding the defective data block and the replacement data.

5. The information storage medium of claim 1, wherein:

the information storage medium is a write-once information storage medium and further comprises a temporary disc management area for temporary disc management;

temporary defect information about the defective data block and the replacement data is recorded in the same recording layer that the defective data block is detected; and

the temporary disc management area comprises address information regarding the temporary defect information in each recording layer.

6. The information storage medium of claim 5, wherein:

the temporary disc management area comprises a temporary disc management structure (TDMS) update unit as temporary disc management information; and

the TDMS update unit comprises a temporary defect list having temporary defect information regarding one of the plurality of recording layers, and a temporary disc definition structure having a pointer indicating a location of the last temporary defect list of each recording layer.

7. A recording apparatus to record data in an information storage medium having a plurality of recording layers, each comprising a user data area to record user data and a spare area to record replacement data that replaces a defective data block when a defect occurs in data recorded in the user data area, the recording apparatus comprising:

a write unit to write data to the information storage medium; and

a controller to control the write unit to write the replacement data in the same recording layer as the defective data block.

8. The recording apparatus of claim 7, wherein the controller further controls the write unit so that defect information containing information about the defective data block and the replacement data is formed in each recording layer and recorded in at least one recording layer.

9. The recording apparatus of claim 8, wherein the controller inserts information about the recording layer in which the defect information is recorded in the defect information.

10. The recording apparatus of claim 8, wherein the controller inserts an identification of a defect list, a layer number of the defect list, and at least one defect list entry in the defect information, and inserts address information regarding the defective data block and the replacement data in each defect list entry.

11. The recording apparatus of claim 7, wherein:

the information storage medium is a write-once information storage medium and further comprises a temporary disc management area for temporary disc management; and

the controller controls the write unit so that temporary defect information containing information about the defective data block and the replacement data is recorded in the same recording layer that the defective data block is recorded, and address information regarding the temporary defect information for each recording layer is recorded in the temporary disc management area.

12. The recording apparatus of claim 11, wherein:

the controller controls the write unit to record a temporary disc management structure (TDMS) update unit in the temporary disc management area as temporary disc management information; and

the controller inserts into the TDMS update unit a temporary defect list comprising temporary defect information about one of the plurality of recording layers and a temporary disc definition structure comprising a pointer indicating a location of the last temporary defect list of each recording layer.

13. A reproducing apparatus to reproduce data in an information storage medium having a plurality of recording layers, each comprising a user data area to record user data and a spare area to record replacement data that replaces a defective data block when a defect occurs in data recorded in the user data area, the reproducing apparatus comprising:

a read unit to read data from the information storage medium; and

a controller to control the read unit to read replacement data corresponding to a defective data block from the same recording layer having the defective data block if the data that is to be reproduced is in the defective data block.

14. The reproducing apparatus of claim 13, wherein the controller further controls the read unit so that defect information containing information about the defective data block and the replacement data is formed in each recording layer.

15. The reproducing apparatus of claim 14, wherein the controller obtains information about the recording layer in which the defect information is recorded from the defect information.

16. The reproducing apparatus of claim 14, wherein the controller obtains an identification of a defect list, a layer number of the defect list, and at least one defect list entry from the defect information, and obtains address information regarding the defective data block and the replacement data from the defect list entry.

17. The reproducing apparatus of claim 13, wherein:

the information storage medium is a write-once information storage medium and further comprises a temporary disc management area for temporary disc management; and

the controller further controls the read unit so that temporary defect information containing information about the defective data block and the replacement data is read from the same recording layer having the defective data block and address information regarding the temporary defect information for each recording layer is read from the temporary disc management area.

18. The reproducing apparatus of claim 17, wherein:

the controller controls the read unit so that a temporary disc management structure (TDMS) update unit is read from the temporary disc management area as temporary disc management information; and

the controller obtains, from the TDMS update unit, a temporary defect list comprising temporary defect information regarding one of the plurality of recording layers and a temporary disc definition structure comprising a pointer indicating a location of the last temporary defect list of each recording layer.

19. A recording method that records data in an information storage medium having a plurality of recording layers, each comprising a user data area to record user data and a spare area to record replacement data that replaces a defective data block when a defect occurs in data recorded in the user data area, the recording method comprising:

detecting the defective data block in the user data area; and

recording the replacement data in the same recording layer as the defective data block.

20. The recording method of claim 19, further comprising forming defect information containing information about the defective data block and the replacement data and recording the defect information in at least one recording layer.

21. The recording method of claim 20, wherein the defect information comprises information about the recording layer in which the defect information is recorded.

22. The recording method of claim 20, wherein:

the defect information comprises an identification of a defect list, a layer number of the defect list, and at least one defect list entry; and

each defect list entry comprises address information regarding the defective data block and the replacement data.

23. The recording method of claim 19, wherein the recording method further comprises:

recording temporary defect information containing information about the defective data block and the replacement data in the same recording layer where the defective data block is recorded; and

recording address information regarding the temporary defect information for each recording layer in the temporary disc management area.

24. The recording method of claim 23, further comprising:

recording a temporary disc management structure (TDMS) update unit in the temporary disc management area as temporary disc management information;

wherein the TDMS update unit comprises a temporary defect list having temporary defect information regarding one of the plurality of recording layers and a temporary disc definition structure having a pointer indicating a location of the last temporary defect list of each recording layer.

25. A reproducing method to reproduce data in an information storage medium having a plurality of recording layers, each comprising a user data area to record user data and a spare area to record replacement data that replaces a defective data block when a defect occurs in data recorded in the user data area, the reproducing method comprising:

reading replacement data corresponding to the defective data block from the same recording layer having the defective data block, when data that is to be reproduced is from the defective data block.

26. The reproducing method of claim 25, wherein defect information containing information about the defective data block and the replacement data is formed in each recording layer.

27. The reproducing method of claim 26, further comprising:

obtaining information about the recording layer in which the defect information is recorded from the defect information.

28. The reproducing method of claim 26, further comprising:

obtaining an identification of the defect list, a layer number of the defect list, and at least one defect list entry from the defect information; and

obtaining address information regarding the defective data block and the replacement data from each defect list entry.

29. The reproducing method of claim 25, wherein the reproducing method further comprises:

reading temporary defect information containing information about the defective data block and the replacement data from the same recording layer where the defective data block is recorded; and

reading address information regarding the temporary defect information for each recording layer from the temporary disc management area.

30. The reproducing method of claim 29, further comprising:

reading a temporary disc management structure (TDMS) update unit from the temporary disc management area as temporary disc management information for a temporary disc management; and

obtaining from the TDMS update unit a temporary defect list comprising temporary defect information regarding one of the plurality of recording layers and a temporary disc definition structure comprising a pointer indicating the last temporary defect list of each recording layer.