Optical recording medium, recording/reproducing apparatus, and recording/reproducing method
AssigneeSamsung Electronics Co., Ltd.
InventorsSung-hee Hwang, Jung-wan Ko
Life of this patent
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Abstract
An information recording medium, on which when a spare area for a replacement block for replacing a defect block created in a predetermined area of an information recording medium is enlarged or newly allocated, defect status information of blocks within the enlarged or newly allocated spare area is changed and written on the information recording medium. By managing the defect status information of the blocks within the enlarged or newly allocated spare area, unnecessary operations of a drive system are eliminated thus improving efficiency of the drive system.
Claims2
A recording and/or reproducing apparatus that records or reproduces data on or from an information recording medium, comprising:
- a reading and/or writing unit that reads the data from the information recording medium and/or writes the data on the information recording medium;
- and
- a defect managing unit that generates a second defect list entry when a replacement block corresponding to a first defect list entry exists within an enlarged or newly allocated spare area,
- wherein the first defect list entry comprises status information indicating that the block is a possible defective block, and first information indicating a location of the possible defective block, and
- the second defect list entry comprises status information indicating that the replacement block is an unusable block for replacing the possible defective block, and second information indicating a location of the replacement block.
An information recording medium for using with a recording and/or reproducing apparatus, comprising:
- a first defect list entry comprising status information indicating that a block is a possible defective block, and first information indicating a location of the possible defective block,
- wherein a second defect list entry is recorded on the information recording medium, when a replacement block corresponding to the first defect list entry exists within an enlarged or newly allocated spare area, and
- the second defect list entry comprises status information indicating that the replacement block is an unusable block for replacing the possible defective block, and second information indicating a location of the replacement block.
Dependencies are inferred from the claim text.