MULTI-LAYER OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING DEVICE
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United States of America Patent
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Issued Date -
Apr 2, 2015
app pub date -
Mar 21, 2013
filing date -
Mar 30, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multi-layer recording medium is constituted by guide layer-equipped optical disks having a plurality of recording layers and guide layers are integrated by bonding said disks to one another so as to produce a double-sided disk, both sides of which may be used for recording. With regards to the lead-in areas for the guide layers of the guide layer-equipped optical disks for both sides, single-sided disks and double-sided disks are identified, and face-management information for identifying the side surfaces in the case of a double-sided disk is recorded in advance in said lead-in areas using wobbles or the like. As a result, the likelihood of the occurrence of defective products caused by the inability to read the face information can be reduced.
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