Disk defect management method and disk recording and reproducing apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShinji Sasaki, Hiroshi Ueda, Motoshi Ito, Yoshihisa Fukushima
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Abstract
A method for managing a defect of a disk is provided, the disk including a plurality of tracks, each of the plurality of tracks being divided into a plurality of sectors, the method including the steps of: detecting a defective sector which cannot be traced physically among the plurality of sectors; and registering the defective sector and at least one sector following the defective sector in a defect list as defective sectors.
Claims6
A method for managing a defect of a disk, the disk including a plurality of tracks, each of the plurality of tracks being divided into a plurality of sectors, the method comprising the steps of:
- detecting a defective sector which cannot be traced physically among the plurality of sectors;
- and
- registering the defective sector and at least one sector following the defective sector in a defect list as defective sectors.
An information recording medium comprising at least one track, each of the at least one track being divided into a plurality of sectors,
- wherein position information of a defective sector which cannot be traced physically and position information of at least one of the plurality of sectors following the defective sector are recorded so as to be referred to as position information of defective sectors.
An information recording medium comprising a plurality of zones, each of the plurality of zones including at least one track, each of the at least one track being divided into a plurality of sectors,
- wherein a first block with an error correction code calculated is formed across at least two of the plurality of sectors and a second block with an error correction code calculated is formed across at least two of the plurality of sectors, and
- position information of the first block including a defective sector which cannot be traced physically among the plurality of sectors and position information of the second block including at least one of the plurality of sectors following the defective sector are recorded so as to be referred to as position information of defective blocks.
A method for managing a defect of a disk, the disk including a plurality of zones, each of the plurality of zones including a plurality of tracks, each of the plurality of tracks being divided into a plurality of sectors, blocks each having an error correction code calculated being formed across at least two of the plurality of sectors, the method comprising the steps of:
- detecting a defective sector which cannot be traced physically among the plurality of sectors;
- and
- registering a first one of the blocks including the defective sector and a second one of the blocks including at least one of the plurality of sectors following the defective sector as defective sectors.
Dependencies are inferred from the claim text.