Write-once optical disc, and method and apparatus for recording/reproducing data on/from the optical disc

• US 20050083815A1
• Filed: 10/19/2004
• Published: 04/21/2005
• Est. Priority Date: 10/20/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Yong Cheol
• Granted Patent: US 7,483,355 B2
• Time in Patent Office: Days
• US Class Current: 369/53.150
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/10861 Finalising a record carrier after a recording operation, e.g. to ensure compatibility with a ROM medium
• CPC Class Codes: G11B 2020/1826 wherein a defect list or error map is generated
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers

Abstract

A write-once recording medium structure and an apparatus and method for recording final management information on the recording medium, are provided. The recording medium includes a temporary defect management area (TDMA) and a defect management area (DMA). The method includes transferring information recorded in the TDMA to the DMA of the recording medium and recording the transferred information in the DMA as final management information. The final management information includes at least one defect list and either space bit map information or sequential recording range information. The position information on one or all valid defect lists is recorded in the DMA.

Claims

1. A method for recording final management information on a write-once recording medium, the recording medium including a temporary defect management area (TDMA) and a defect management area (DMA), the method comprising:

transferring information recorded in the TDMA to the DMA of the recording medium; and

recording the transferred information in the DMA as final management information, the final management information including at least one defect list and either space bit map information or sequential recording range information,

wherein the recording step includes;

storing, in the DMA, position information on one valid defect list from the at least one defect list recorded in the DMA.

2. The method of claim 1, wherein in the storing step, the position information on one valid defect list is position information on only a first valid defect list from the at least one defect list recorded in the DMA.

3. The method of claim 1, wherein the final management information further includes disc definition structure (DDS) information recorded in the DMA.

4. The method of claim 3, wherein in the storing step, the position information on one valid defect list is stored as part of the DDS information.

5. The method of claim 1, wherein in the storing step, the position information on one valid defect list is a first physical sector number of the one valid defect list.

6. The method of claim 1, wherein in the transferring step, the recording medium is a single layer recording medium or a dual layer recording medium.

7. The method of claim 1, wherein the recording step includes:

recording a defect list to a defect list area of the DMA;

verifying if the recorded defect list area is defective; and

performing the storing step to store position information on the recorded defect list area if the verifying step indicates that the recorded defect list area is not defective.

8. The method of claim 7, wherein the recording step further includes:

recording the defect list to each of next available defect list areas of the DMA.

9. The method of claim 8, wherein the step of recording the defect list to each of the next available defect list areas is performed optionally.

10. A method for recording final management information on a write-once recording medium, the recording medium including a temporary defect management area (TDMA) and a defect management area (DMA), the method comprising:

transferring information recorded in the TDMA to the DMA of the recording medium; and

recording the transferred information in the DMA as final management information, the final management information including a plurality of duplicated defect lists and either space bit map information or sequential recording range information,

wherein the recording step includes;

storing, in the DMA, position information on all valid defect lists from the duplicated defect lists recorded in the DMA.

11. The method of claim 10, wherein the final management information further includes disc definition structure (DDS) information recorded in the DMA.

12. The method of claim 11, wherein in the storing step, the position information is stored as part of the DDS information.

13. The method of claim 10, wherein in the storing step, the position information on all valid defect lists includes a first physical sector number of each of the valid defect lists.

14. The method of claim 10, wherein in the transferring step, the recording medium is a single layer recording medium or a dual layer recording medium.

15. The method of claim 10, wherein the recording step includes:

recording a defect list to a defect list area of the DMA;

verifying if the recorded defect list area is defective; and

performing the storing step to store position information on the recorded defect list area if the verifying step indicates that the recorded defect list area is not defective.

16. The method of claim 15, wherein the recording step, the verifying step and the performing step of the recording step are repeated for up to seven times for one DMA.

17. A write-once recording medium comprising:

at least one recording layer; and

a temporary defect management area (TDMA) and a defect management area (DMA) on the at least one recording layer,

wherein information recorded in the TDMA is transferred and recorded to the DMA as part of final management information, and

the final management information includes at least one defect list, either space bit map information or sequential recording range information, and position information on one valid defect list from the at least one defect list recorded in the DMA.

18. The recording medium of claim 17, wherein the position information on one valid defect list is position information on only a first valid defect list from the at least one defect list recorded in the DMA.

19. The recording medium of claim 17, wherein the final management information further includes disc definition structure (DDS) information recorded in the DMA.

20. The recording medium of claim 19, wherein the position information on one valid defect list is stored as part of the DDS information.

21. The recording medium of claim 17, wherein the position information on one valid defect list is a first physical sector number of the one valid defect list.

22. The recording medium of claim 17, wherein the recording medium has only a single recording layer.

23. The recording medium of claim 17, wherein the recording medium has two recording layers.

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

a reserved area in the DMA.

25. The recording medium of claim 17, wherein the recording medium is a Blu-ray write-once optical disc.

26. The recording medium of claim 17, wherein the DMA includes:

a first area for storing therein the position information along with the space bit map information or sequential recording range information; and

a plurality of second areas each for optionally storing a defect list.

27. A write-once recording medium comprising:

at least one recording layer; and

a temporary defect management area (TDMA) and a defect management area (DMA) on the at least one recording layer,

wherein information recorded in the TDMA is transferred and recorded to the D MA as part of final management information, and

the final management information includes a plurality of duplicated defect lists, either space bit map information or sequential recording range information, and position information on all valid defect lists from the duplicated defect lists recorded in the DMA.

28. The recording medium of claim 27, wherein the final management information further includes disc definition structure (DDS) information recorded in the DMA.

29. The recording medium of claim 27, wherein the position information is stored as part of the DDS information.

30. The recording medium of claim 27, wherein the position information on all valid defect lists includes a first physical sector number of each of the valid defect lists.

31. The recording medium of claim 27, wherein the recording medium has only a single recording layer.

32. The recording medium of claim 27, wherein the recording medium has two recording layers.

33. The recording medium of claim 32, further comprising:

a reserved area in the DMA.

34. The recording medium of claim 27, wherein the recording medium is a Blu-ray write-once optical disc.

35. The recording medium of claim 27, wherein the DMA includes:

a first area for storing therein the position information along with the space bit map information or sequential recording range information; and

a plurality of second areas each for storing a copy of a defect list.

36. An apparatus for recording final management information on a write-once recording medium, the recording medium including a temporary defect management area (TDMA) and a defect management area (DMA), the apparatus comprising:

a recording/reproducing unit; and

a controller controlling the recording/reproducing unit for transferring information recorded in the TDMA to the DMA of the recording medium, and recording the transferred information in the DMA as part of final management information,

wherein the final management information includes at least one defect list, either space bit map information or sequential recording range information, and position information on one valid defect list from the at least one defect list recorded in the DMA.

37. An apparatus for recording final management information on a write-once recording medium, the recording medium including a temporary defect management area (TDMA) and a defect management area (DMA), the apparatus comprising:

a recording/reproducing unit; and

a controller controlling the recording/reproducing unit for transferring information recorded in the TDMA to the DMA of the recording medium, and recording the transferred information in the DMA as part of final management information,

wherein the final management information includes a plurality of duplicated defect lists, either space bit map information or sequential recording range information, and position information on all valid defect lists from the duplicated defect lists recorded in the DMA.