| 摘要 |
PROBLEM TO BE SOLVED: To realize a proper reproducing operation on a recordable multilayer disk. SOLUTION: In the case of transfer from a recording layer having user data recorded therein to a next recording layer, in a transfer destination recording layer, recording is first executed in a guard area, and user data is subsequently executed. Alternatively, when the recording start position of the user data in the transfer destination recording layer is known beforehand, a guard area is formed in the transfer destination recording layer before the user data is recorded. That is, in the case of transfer from the recording layer having the user data recorded therein to the next recording layer, by setting the guard area in the section before the recording position of the user data in the transfer destination recording layer, during the reproducing of the user data, a reproducing signal for reproduction preparation is obtained beforehand. COPYRIGHT: (C)2005,JPO&NCIPI
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