Method and apparatus for overwriting data on recording-medium and the recording medium

• US 20070121431A1
• Filed: 01/30/2007
• Published: 05/31/2007
• Est. Priority Date: 06/23/2004
• Status: Active Grant

• Current Assignee: Sung Park, Yong Park
• Original Assignee: Sung Park, Yong Park
• Inventors: Park, Sung, Park, Yong
• Granted Patent: US 7,502,288 B2
• Time in Patent Office: Days
• US Class Current: 369/30.70
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/10907 using pseudo-overwriting, i.e. virtually or logically overwriting data on WORM media by remapping recorded blocks to alternate areas
• 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 27/036 Insert-editing
• CPC Class Codes: G11B 7/0045 Recording G11B7/006, G11B7/0065 take precedence
• 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

In one embodiment, the recording medium includes a user data area on which one or more recording ranges are allocated and a management area. The method includes receiving a command to record the data on a closed recording range. The closed recording range has no recordable position. An open recording range having a recordable position is selected from one or more open recording ranges on the user data area, and the data is recorded starting from the recordable position of the selected open recording range.

Claims

1. A method of recording data on a recording medium including a user data area on which one or more recording ranges are allocated and a management area, the method comprising:

receiving a command to record the data on a closed recording range, the closed recording range having no recordable position;

selecting an open recording range having a recordable position from one or more open recording ranges on the user data area; and

recording the data starting from the recordable position of the selected open recording range.

2. The method of claim 1, wherein the data is recorded sequentially from the recordable position of the selected open recording range.

3. The method of claim 1, further comprising:

checking management information recorded on the management area to select the open recording range for recording the data, the management information including a list of the one or more open recording ranges.

4. The method of claim 1, further comprising:

checking the last recorded position of the selected open recording range.

5. The method of claim 4, wherein the recordable position of the selected open recording range indicates the first sub-recording unit of the first recording unit following the last recorded position of the selected open recording range.

6. The method of claim 1, further comprising:

recording entry information in the management area, the entry information indicating a start address of the recorded area to which the command is made and a start address of the recordable position of the selected open recording range.

7. The method of claim 1, wherein the selected open recording range is an open recording range nearest to the closed recording range.

8. The method of claim 1, wherein the selecting step selects the first open recording range from the one or more open recording ranges.

9. The method of claim 1, wherein the recording step is continued in another open recording range if the selected open recording range does not include an unrecorded area large enough for the data.

10. An apparatus for recording data on a recording medium including a user data area on which one or more recording ranges are allocated and a management area, the apparatus comprising:

a reading unit recording the data on the recording medium; and

a controller receiving a command to record the data on a closed recording range, the closed recording range having no recordable position, the controller selecting an open recording range having a recordable position from one or more open recording ranges on the user data area, and the controller controlling the reading unit to record the data starting from the recordable position of the selected open recording range.

11. The apparatus of claim 10, wherein the controller controls the recording unit to record the data sequentially from the recordable position of the selected open recording range.

12. The apparatus of claim 10, wherein the controller checks management information recorded on the management area to select the open recording range for recording the data, the management information including a list of the one or more open recording ranges.

13. The apparatus of claim 10, wherein the controller checks the last recorded position of the selected open recording range from management information recorded on the management area, and controls the recording unit to record the data from the first sub-recording unit of the first unrecorded recording unit following the last recorded position.

14. The apparatus of claim 10, wherein the controller selects an open recording range nearest to the closed recording range.

15. The apparatus of claim 10, wherein the controller selects the first open recording range from the one or more open recording ranges.

16. A recording medium comprising:

a user data area on which one or more recording ranges are allocated, each recording range is one of an open recording range having a recordable position and a closed recording range having no recordable position; and

a management area on which management information for the recording ranges is recorded,

wherein an open recording range is selected from one or more open recording ranges on the user data area if a command to record data is made to a closed recording range on the user data area, and the data is recorded starting from the recordable position of the selected open recording range.

17. The recording medium of 16, wherein the management information includes a list of the one or more open recording ranges.

18. The recording medium of 16, wherein the management information includes the last recorded position of each recording range allocated on the user data area.

19. The recording medium of 16, wherein the recordable position of the selected open recording range indicates the first sub-recording unit of the first unrecorded recording unit following the last recorded position of the selected open recording range.

20. The recording medium of 16, wherein the management area further includes entry information which indicates a start position of an recording area specified by the command and a start position of the recordable position, from which the data is recorded, of the selected recording range.

21. A method of reproducing data recorded on a recording medium including a user data area on which one or more recording ranges are allocated, each recording range being one of an open recording range having a next recordable position and a closed recording range having no next recordable position, and a management area, the method comprising:

receiving a reproducing command to reproduce first data recorded in a first area of a recording range; and

reproducing second data recorded in a second area replacing the first area,

wherein the recording range including the first area is a closed recording range, the first and second areas are managed by entry information.

22. The method of claim 21, wherein the reproducing step comprise:

checking the entry information recorded in the management area to reproduce the second data recorded in the second area, the entry information indicating a start position of the first area and a start position of the second area.

23. The apparatus for reproducing data recorded on a recording medium including a user data area on which one or more recording ranges are allocated, each recording range being one of an open recording range having a next recordable position and a closed recording range having no next recordable position, and a management area, the apparatus comprising:

a reproducing unit reproducing the data from the recording medium; and

a controller receiving a reproducing command to reproduce first data recorded in a first area of a recording range, and the controller controlling the reproducing unit to reproduce second data recorded in a second area replacing the first area,

wherein the recording range including the first area is a closed recording range, the first and the second areas are managed by an entry information.

24. The apparatus of claim 23, wherein the controller checks the entry information recorded in the management area to reproduce the second data recorded in the second area, the entry information indicates a start position of the first area and a start position of the second area.