Recording medium having data structure for managing at least a data area of the recording medium and recording and reproducing methods and apparatuses

• US 20050022072A1
• Filed: 05/07/2004
• Published: 01/27/2005
• Est. Priority Date: 05/09/2003
• Status: Active Grant

• Current Assignee: Intellectual Discovery Co., Ltd.
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Yong Cheol
• Granted Patent: US 7,506,109 B2
• Time in Patent Office: Days
• US Class Current: 714/54
• CPC Class Codes: G11B 20/18 Error detection or correction; Testing , e.g. of drop-outs
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1285 Status of the record carrier, e.g. space bit maps, flags indicating a formatting status or a write permission
• 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
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/36 Monitoring, i.e. supervising the progress of recording or reproducing for digital recording G11B20/00 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06

Abstract

The data structure on the recording medium includes a temporary defect management area storing a data block. The data block includes a temporary definition structure. The temporary definition structure indicates a recording mode of the recording medium.

Claims

1. A write-once recording medium having a data structure for managing a data area of the recording medium, comprising:

a temporary defect management area storing a data block, the data block including a temporary definition structure, the temporary definition structure indicating a recording mode of the recording medium.

2. The recording medium of claim 1, wherein the data block further includes use status information for a data area of the recording medium, the use status information providing information on use of the data area to store data.

3. The recording medium of claim 1, wherein the recording mode is one of sequential recording and random recording.

4. The recording medium of claim 3, wherein when the recording mode is sequential recording, the data block includes sequential recording information providing information on continuous recording areas in a data area of the recording medium.

5. The recording medium of claim 4, wherein the sequential recording information includes a header, information entries for each continuous recording area and a terminator, the header identifying the sequential recording information as sequential recording information, each information entry providing information on an associated continuous recording area, and the terminator indicating an end of the sequential recording information.

6. The recording medium of claim 5, wherein the header information indicates a number of the continuous recording areas.

7. The recording medium of claim 6, wherein the header information indicates a number of the continuous recording areas open for recording.

8. The recording medium of claim 5, wherein the header information indicates a number of the continuous recording areas open for recording.

9. The recording medium of claim 5, wherein each information entry indicates whether the associated continuous recording area is a first continuous recording area in a group of continuous recording areas.

10. The recording medium of claim 5, wherein each information entry indicates whether the associated continuous recording area is open for recording.

11. The recording medium of claim 5, wherein each information entry indicates a starting physical sector number of the associated continuous recording area.

12. The recording medium of claim 5, wherein each information entry indicates a last recording address of the associated continuous recording area.

13. The recording medium of claim 5, wherein each information entry indicates a status of the associate continuous recording area, indicates a starting physical sector number of the associated continuous recording area, and indicates a last recording address of the associated continuous recording area.

14. The recording medium of claim 13, wherein the status indicates whether the associated continuous recording area is a start of a group of continuous recording areas.

15. The recording medium of claim 3, wherein when the recording mode is random recording, the data block includes a space bit map indicating recordation status of a data area of the recording medium.

16. The recording medium of claim 15, wherein the space bit map includes space bit map data, a data pointer pointing to the space bit map data, and a length indicator indicating a length of the space bit map data.

17. The recording medium of claim 16, wherein the data pointer indicates a first physical sector number of the space bit map data.

18. The recording medium of claim 16, wherein the space bit map data includes a status indicator associated with each recording unit of the data area, the status indicator indicating whether data is recorded in the associated recording unit.

19. The recording medium of claim 18, wherein the recording unit is a cluster.

20. The recording medium of claim 16, wherein the space bit map further includes a format indicator indicating a format of the space bit map.

21. The recording medium of claim 16, wherein

the recording medium is a dual layer optical disc;

and

the space bit map further includes a layer indicator indicating a layer to which the space bit map corresponds.

22. A method of formatting a write-once recording medium, comprising:

receiving input related to a desired recording mode for the recording medium; and

recording an indicator of the desired recording mode in a temporary definition structure in a temporary defect management area of the recording medium.

23. The recording medium of claim 22, wherein the desired recording mode is one of a sequential recording mode and a random recording mode.

24. The method of claim 23, further comprising:

recording sequential recording information in the temporary defect management area, the sequential recording information providing information on continuous recording areas in a data area of the recording medium when the recorded recording mode indicator indicates a sequential recording mode.

25. The method of claim 23, further comprising:

recording a space bit map in the temporary defect management area, the space bit map provides information on a recordation status of a data area of the recording medium when the recorded recording mode indicator indicates a random recording mode.

26. A method of recording management information on a write-once recording medium, comprising:

reproducing a recording mode indicator from a temporary definition structure in a temporary defect management area of the recording medium;

judging a recording mode of the recording medium based on the recording mode indicator; and

recording use status information for the recording medium in the temporary defect management area based on the judging step, the use status information providing information on use of a data area of the recording medium to store data.

27. The method of claim 26, wherein the use status information is sequential recording information that provides information on continuous recording areas in the data area of the recording medium when the judging step judges that the reproduced recording mode indicator indicates a sequential recording mode.

28. The method of claim 26, wherein the use status information is a space bit map that provides information on a recordation status of the data area when the judging step judges that the reproduced recording mode indicator indicates a random recording mode.

29. A method of recording management information on a write-once recording medium, comprising:

updating use status information by recording updated use status information in a temporary defect management area of the recording medium when an event occurs, the use status information providing information on use of a data area of the recording medium to store data.

30. The method of claim 29, further comprising:

reproducing a recording mode indicator from the temporary defect management area, the recording mode indicator indicating a recording mode of the recording medium; and

wherein

the updating step updates the use status information according to a format associated with the recording mode indicated by the recording mode indicator.

31. The method of claim 29, wherein the event is creation of a new recording area in the data area.

32. The method of claim 29, wherein the event is a recording area in the data area having been changed to a recording completed area.

33. The method of claim 29, wherein the event is one of the recording medium being ejected from a recording medium driver and powering off of the recording medium driver driving the recording medium.

34. The method of claim 29, wherein the use status information is one of sequential recording that provides information on continuous recording areas in the data area of the recording medium and a space bit map that provides information on a recordation status of the data area.

35. A write-once recording medium having a data structure for managing a data area of a recording medium, comprising:

a temporary defect management area storing a plurality of different sized defect lists, each defect list indicating defects in a data area of recording layers of the recording medium at a time when the defect list was recorded, and the temporary defect management area storing a plurality of fixed sized temporary definition structures, each temporary definition structure providing use status information on a data area of one layer of the recording medium at a time when the temporary definition structure was recorded.

36. A method of recording management information on a write-once recording medium, comprising:

recording at least one defect list in a temporary defect management area, the defect list listing defects in data areas of recording layers of the recording medium, the recorded defect list including new defects as compared to a previously recorded defect list such that the recorded defect list and previously recorded defect list have different sizes; and

recording at least one temporary definition structure in the temporary defect management area, each temporary definition structure providing use status information on a data area of one layer of the recording medium at a time when the temporary definition structure was recorded, the recorded temporary definition structure consuming a same amount of space on the recording medium as a previously recorded temporary definition structure.

37. A method of recording management information on a write-once recording medium having a temporary defect management area in which are stored at least one temporary definition structure associated with each recording layer of the recording medium, each temporary definition structure including use status information providing information on use of a data area in the associated recording layer to store data, comprising:

recording, in a defect management area of the recording medium, a most current temporary definition structure associated with each recording layer.

38. The method of claim 37, wherein the recording step records the most current temporary definition structure associated with each recording layer more than once in the defect management area.

39. The method of claim 37, wherein

the recording medium includes first and second recording layers;

and

the recording step records, in sequence, the most current temporary definition structure associated with the first recording layer, the most current temporary definition structure associated with the second recording layer, the most current temporary definition structure associated with the second recording layer and the most current temporary definition structure associated with the first recording layer.

40. A method of recording management data on a write-once recording medium, comprising:

recording a data block in a temporary defect management area, the data block including a temporary definition structure, the temporary definition structure indicating a recording mode of the recording medium.

41. A method of reproducing data from a write-once recording medium, comprising:

reproducing at least a portion of data recorded on the recording medium based on a data block recorded in a temporary defect management area of the recording medium, the data block including a temporary definition structure, the temporary definition structure indicating a recording mode of the recording medium.

42. An apparatus for recording management data on a write-once recording medium, comprising:

a driver for driving an optical recording device to record data on the recording medium; and

a controller for controlling the driver to record a data block in a temporary defect management area, the data block including a temporary definition structure, the temporary definition structure indicating a recording mode of the recording medium.