| 摘要 |
To provide a disk unit wherein a prompt search is enabled even if the recorded time of one track is long, if the total recorded time of one track is below five minutes, a search mode is set to a small jump mode in which a search is performed at a short step. If the total recorded time of one track is over 5 minutes, thirty minutes or below thirty minutes for example, a search mode is set to an intermediate jump mode in which a search is performed at an intermediate step and the small jump mode. In case the total recorded time of one track exceeds thirty minutes for example, a search mode is set to a time jump mode in which a jump by input time is performed, the intermediate jump mode and the small jump mode.
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