| 摘要 |
An information recording and reproduction apparatus comprising a recording and reproduction section configured to record and reproduce information in and from one recording medium of a first group and at least one recording medium of a second group, which has a smaller recording capacity than the one recording medium of the first group, and a registering section configured to reserve, in the one recording medium of the first group, a recording region which corresponds to the recording capacity of the at least one recording medium of the second group.
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