| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive device which can efficiently use a user data area in the pseudo overwriting recording of a write-once type optical disk. Ž<P>SOLUTION: The drive device (310) includes a recording/reproduction unit (314) and a drive control unit (311). The drive control unit (311) at least allocates a continuous area at a particular position in the user data area other than a position specified by a recording instruction, controls the recording/reproduction unit so as to record data in the allocated continuous area, and generates new disk management information including first alternation management information for mapping the starting position of the continuous area specified by the recording instruction at the starting position of the allocated continuous area and second alternation management information for mapping the end position of the continuous area specified by the recording instruction at the end position of the allocated continuous area. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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