Invention Grant
US07801007B2 Information recording medium, and information recording apparatus and method 失效
信息记录介质,信息记录装置和方法

Information recording medium, and information recording apparatus and method
Abstract:
An information recording medium includes at least a disc-shaped first recording layer having a first recording track formed for recording record information and a disc-shaped second recording layer having a second recording track formed for recording the record information in the same recording direction as the first recording track of the first recording layer. A second place serving as a reference of a pre-format address for indicating the start position of the data area in the second recording track (position of a circle of address 30000h in the radius direction in the L1 layer) is located at an outer side as compared to a first position serving as the pre-format address for indicating the start position of the data area in the first recording track (position of a circle of address 30000h in the radius direction in the L0 layer) at least by a predetermined first offset amount.
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