| 摘要 |
PROBLEM TO BE SOLVED: To stably and reliably access a desirable area, with simple configuration, of a disc-like recording medium wherein an information recording surface is divided into areas for reproducing systems different from each other. SOLUTION: A disc apparatus comprises a counting means counting the number of moved recording tracks from a traverse signal whose gain or band is changed by a first setting corresponding to a reproduction only area and a second setting corresponding to a recordable area when an optical disc is accessed, which is divided into the reproduction only area and the recordable area and in which boundary recording track position information showing a boundary recording track position between the two areas is recorded. When the boundary recording track position is positioned between a present recording track position and a target recording track position, a switching signal is generated based on the number of moved recording tracks from the present recording track position to the boundary recording track position and the number of counted recording tracks. COPYRIGHT: (C)2006,JPO&NCIPI
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