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Full text of "USPTO Patents Application 10670332"

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Attorney Docket No. 0465-1029P 



What is Claimed is: 

1. A method for managing an optical recording medium having at 
least one temporary defect management area, and at least one spare area in 
a data area, said method comprising: 

replacing data written in a defective area by writing the data written in 
the defective area to the at least one spare area as replacement data if the 
defective area within the data area is detected; and 

writing defect management information in the at least one temporary 
defect management area for access to the data written in the spare area, 
wherein said defect management information for access to the data written 
in the spare area is identified by at least one navigation pointer. 

2. The method according to claim 1, wherein in the writing step, the 
defect management information is written as defect list information in the at 
least one temporary defect management area, and the method further 
comprises managing the defect list information, wherein the defect list 
information includes navigation pointer information including defect entries 
corresponding to actual written replacement data, and writing location 
information of the next available spare area for successive replacement 
writing. 

3. The method according to claim 2, wherein the optical recording 

medium is a Blu-ray disc of writable once type (BD-WO). 

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Attorney Docket No. 0465-1029P 



4. The method according to claim 2, wherein the optical recording 
medium is a Blu-ray disc of read-writable type (BD-RW). 

5. The method according to claim 2, wherein the defect list 
information is temporary defect list information with a recording size smaller 
than four clusters. 

6. The method according to claim 5, wherein the recording size is 
two clusters or smaller. 

7. The method according to claim 2, wherein the defect list 
information has one cluster recording size, and includes defect entries 
corresponding to the replacement data. 

8. The method according to claim 2, wherein a recording size of the 
defect list information to be written is varied to a recording size greater than 
one cluster when the number of defect entries exceeds one cluster of 
recording size. 

9. The method according to claim 8, wherein the recording size of the 
defect list information to be written is varied to a recording size greater than 
one cluster but smaller than four clusters. 



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10. The method according to claim 2, wherein the optical recording 
medium is a single layer Blu-ray disc of writable once type having an inner 
spare area and an outer spare area assigned thereto, and the defect list 
information includes writing location information of the inner spare area 
available for successive replacement writing of replacement data, and writing 
location information of the outer spare area available for successive 
replacement writing of replacement data. 

11. The method according to claim 2, wherein the optical recording 
medium is a dual layer Blu-ray disc of writable once type having an inner 
spare area and an outer spare area assigned to each of a first layer and a 
second layer respectively, and the defect list information includes writing 
location information of the available inner spare areas of the first and second 
layers for successive replacement writing of replacement data, and writing 
location information of the available outer spare areas of the first and second 
layers for successive replacement writing of replacement data. 

12. The method according to claim 2, wherein the defect list 
information has one cluster recording size. 

13. The method according to claim 12, wherein the defect list 
information written previously and newly written defect list information are 
put into different groups for defect management if all of the defect entries 

exceed one cluster recording size due to an increase of the defect entries. 

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Attorney Docket No. 0465-1029P 



14. The method as claimed in claim 13, wherein the defect 
management information further includes information for identifying the 
different groups included as disc definition structure information. 

15. A method for managing an optical recording medium having at 
least one temporary defect management area, and at least one spare area in 
a data area, said method comprising: 

replacing data written in a defective area of the data area in the at 
least one spare area in place of the defective area as replacement data if the 
defective area within the data area is detected; and 

producing defect list information and disc definition structure 
information in the at least one temporary defect management area for access 
to the data written in the at least one spare area as replacement data, and 
managing the defect list information and the disc definition structure 
information, 

wherein the defect list information includes defect entries 
corresponding to the replacement data actually written, and the disc 
definition structure information includes writing location information of a 
next available sector of the spare area for replacement writing as at least one 
navigation pointer. 

16. The method according to claim 15, wherein the defect list 
information includes a defect list terminator for indicating a termination of 
writing of defect entries. 

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17. The method according to claim 15, wherein the writing location 
information is writing location information corresponding to a first sector of a 
first cluster of the spare area available for successive replacement writing of 
new replacement data. 

18. The method as claimed in claim 15, wherein the disc definition 
structure information includes physical sector number information 
corresponding to a writing location of the defect list information. 

19. The method according to claim 15, wherein the optical recording 
medium is a Blu-ray disc of writable once type with an inner spare area and 
an outer spare area assigned thereto, and the disc definition structure 
information includes writing location information corresponding to a first 
sector of a first cluster of the inner spare area available for successive 
replacement writing of replacement data, and writing location information 
corresponding to a first sector of a first cluster of the outer spare area 
available for successive replacement writing of replacement data. 

20. The method according to claim 15, wherein the optical recording 
medium is a dual layer Blu-ray disc of writable once type with a first layer 
inner spare area and a first layer outer spare area assigned to a first layer, 
and a second layer inner spare area and a second layer outer spare area 
assigned to a second layer, and the disc definition structure information 

includes writing location information corresponding to first available sectors 

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Attorney Docket No. 0465-1029P 



of first clusters of the respective inner spare areas of the first and second 
layers for successive replacement writing of replacement data, and writing 
location information corresponding to first available sectors of first clusters 
of the respective outer spare areas of the first and second layers for 
successive replacement writing of replacement data. 

21. A recording medium comprising: 

at least one spare area within a data area; 

a temporary defect management area for managing a defective area 
within the data area; 

a portion of said at least one spare area capable of storing 
replacement data, wherein data written in the defective area is replaced by 
writing the data written in the defective area to the portion of said at least 
one spare area as the replacement data; and 

defect management information in the at least one temporary defect 
management area for access to the data written in the portion of the at least 
one spare area, wherein said defect management information for access to 
the data written in the spare area is identified by at least one navigation 
pointer. 

22. The recording medium according to claim 21, wherein the 
recording medium is a single layer Blu-ray disc of writable once type having 
an inner spare area and an outer spare area assigned thereto, and the defect 

management information includes writing location information of the inner 

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spare area available for successive replacement writing of replacement data, 
and writing location information of the outer spare area available for 
successive replacement writing of replacement data. 

23. The recording medium according to claim 21, wherein the 
recording medium is a dual layer Blu-ray disc of writable once type having 
an inner spare area and an outer spare area assigned to each of a first layer 
and a second layer respectively, and the defect management information 
includes writing location information of the available inner spare areas of the 
first and second layers for successive replacement writing of replacement 
data, and writing location information of the available outer spare areas of 
the first and second layers for successive replacement writing of replacement 
data. 

24. The recording medium according to claim 21, wherein the defect 
management information is written as defect list information in the at least 
one temporary defect management area, and the defect list information 
includes navigation pointer information including defect entries 
corresponding to actual written replacement data, and writing location 
information of the next available spare area for successive replacement 
writing. 

25. The recording medium according to claim 24, wherein the 

recording medium is a Blu-ray disc of writable once type (BD-WO). 

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26. The recording medium according to claim 24, wherein the 
recording medium is a Blu-ray disc of read-writable type (BD-RW). 

27. The recording medium according to claim 24, wherein the defect 
list information is temporary defect list information with a recording size 
smaller than four clusters. 

28. The recording medium according to claim 27, wherein the 
recording size is two clusters or smaller. 

29. The recording medium according to claim 27, wherein the defect 
list information has a recording size of one cluster. 

30. A recording medium comprising: 
at least one spare area in a data area; 

a temporary defect management area for managing a defective area 
within the data area; 

a portion of said at least one spare area capable of storing 
replacement data, wherein data written in the defective area is replaced by 
writing the data written in the defective area to the portion of said at least 
one spare area as the replacement data; and 

defect list information and disc definition structure information in the 
temporary defect management area for access to the data written in the 
portion of the at least one spare area, 

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wherein the defect list information includes defect entries 
corresponding to the replacement data actually written, and the disc 
definition structure information includes writing location information of a 
next available sector of the at least one spare area for replacement writing as 
at least one navigation pointer. 

31. The recording medium according to claim 30, wherein the defect 
list information includes a defect list terminator for indicating a termination 
of writing of defect entries. 

32. The recording medium according to claim 30, wherein the 
writing location information is writing location information corresponding to 
a first sector of a first cluster of the spare area available for successive 
replacement writing of new replacement data. 

33. The recording medium according to claim 30, wherein the disc 
definition structure information includes physical sector number information 
corresponding to a writing location of the defect list information. 

34. The recording medium according to claim 30, wherein the 
recording medium is a Blu-ray disc of writable once type with an inner spare 
area and an outer spare area assigned thereto, and the disc definition 
structure information includes writing location information corresponding to 

a first sector of a first cluster of the inner spare area available for successive 

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replacement writing of replacement data, and writing location information 
corresponding to a first sector of a first cluster of the outer spare area 
available for successive replacement writing of replacement data. 

35. The recording medium according to claim 30, wherein the 
recording medium is a dual layer Blu-ray disc of writable once type with a 
first layer inner spare area and a first layer outer spare area assigned to a 
first layer, and a second layer inner spare area and a second layer outer 
spare area assigned to a second layer, and the disc definition structure 
information includes writing location information corresponding to first 
available sectors of first clusters of the respective inner spare areas of the 
first and second layers for successive replacement writing of replacement 
data, and writing location information corresponding to first available sectors 
of first clusters of the respective outer spare areas of the first and second 
layers for successive replacement writing of replacement data. 

36. An apparatus for managing an optical recording medium having 
at least one temporary defect management area, and at least one spare area 
in a data area, said apparatus comprising: 

means for replacing data written in a defective area by writing the 
data written in the defective area to the at least one spare area as 
replacement data if the defective area within the data area is detected; and 

means for writing defect management information in the at least one 

temporary defect management area for access to the data written in the 

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Attorney Docket No. 0465-1029P 



spare area, wherein said defect management information for access to the 
data written in the spare area is identified by at least one navigation pointer. 

37. The apparatus according to claim 36, wherein the defect 
management information is written as defect list information in the at least 
one temporary defect management area by said means for writing defect 
management information, and the defect list information includes navigation 
pointer information including defect entries corresponding to actual written 
replacement data, and writing location information of the next available 
spare area for successive replacement writing. 

38. An apparatus for managing an optical recording medium having 
at least one temporary defect management area, and at least one spare area 
in a data area, said apparatus comprising: 

means for replacing data written in a defective area of the data area in 
the at least one spare area in place of the defective area as replacement data 
if the defective area within the data area is detected; and 

means for producing defect list information and disc definition 
structure information in the at least one temporary defect management area 
for access to the data written in the at least one spare area as replacement 
data, and the defect list information includes defect entries corresponding to 
the replacement data actually written, and the disc definition structure 
information includes writing location information of a next available sector of 



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the at least one spare area for replacement writing as at least one navigation 
pointer. 



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