| 摘要 |
A method for recording/reproducing data to/from a medium by which a table is formed for assigning physical addresses of spare areas of the medium to make the physical addresses be continuous with the last address of logical addresses of a user data recording area, and recording/reproducing is performed by using the table. The physical address of an unused spare area is assigned to make the physical address be continuous with the last address of the logical addresses of the user data recording area. It is therefore possible to use the unused spare area as the user data recording area and to effectively utilize the unused spare area.
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