| 摘要 |
An optical disk and method of recording information on the same are provided in which music and images such as, motion pictures can be recorded without dropout of information by more reducing the time necessary to replace than in the prior art. On this optical disk are provided a plurality of management areas, of which one or a plurality of the management areas are located between the innermost and outermost peripheries and are used for storing replacement information. Therefore, the optical head need not be moved to the innermost or outermost periphery at the time of replacement unlike the prior art.
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