| 摘要 |
PROBLEM TO BE SOLVED: To enable follow-up reproduction after securing the continuity of information. SOLUTION: The follow-up reproduction is enabled after securing the continuity of the information by detecting a free area where the continuity of the information can be compensated among free areas existing on a disk 1, recording inputted information in the free area while controlling the recording and reproduction via a track buffer 9 and controlling the execution of reproduction of the already-recorded information by a system controller 5.
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