INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, AND INFORMATION REPRODUCING APPARATUS AND METHOD
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United States of America Patent
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Issued Date -
Jan 24, 2013
app pub date -
Apr 2, 2010
filing date -
Apr 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An information recording medium (11) adopting a zone CAV method is provided with: a guide layer (12) in which tracks (TR) are formed in advance; and a plurality of recording layers (13) laminated on the guide layer. On the tracks, a plurality of guide areas (22), each of which has a physical structure for carrying guide information for guidance, are arranged discretely at arrangement intervals of predetermined distance or less which is set in advance in a track direction and are shifted between a plurality of tracks throughout the plurality of tracks which are adjacent to each other in a radial direction. The plurality of guide areas are disposed in a partial plurality of slots which are not adjacent to each other in the track direction and which are not adjacent to each other throughout the plurality of tracks in the radial direction, out of a plurality of slots obtained by dividing the tracks in the track direction.
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