| 摘要 |
PROBLEM TO BE SOLVED: To provide an information recording and reproducing system in which stable signal quality is ensured and stable reproduction is performed at all recording positions of inner and outer peripheries, and which has high reliability and a large capacity. SOLUTION: A recording region of a disk-type recording medium 1 is sectioned to a plurality of zones 2a-2f being adjacent radially and successively, a clock for recording and reproducing is allotted for every zone of zones 2a-2f , recording/reproducing of data is performed by clocks allotted for every zone of zones 2a-2f. COPYRIGHT: (C)2004,JPO
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