To provide an optical information recording medium wherein satisfactory modulation of a BCA signal recorded in the optical information recording medium can be obtained during reproduction, and to provide its manufacturing method.
In the optical information recording medium, having a reflecting layer and a recording layer on a substrate and having a burst cutting area, a gap is formed in the reflecting layer in the area corresponding to a bar recording part of the burst-cutting area. The manufacturing method of the optical information recording medium, having the reflecting layer and the recording layer on the substrate and having the burst cutting area, includes a burst cutting area forming step for forming the burst cutting area by making a laser beam incident from a surface opposite to the side irradiated with a laser beam for recording optical information.
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| JP2004359779 | ADHESIVE COMPOSITION FOR OPTICAL DISK |
| JP2001056969 | PRODUCTION OF MULTILAYER OPTICAL DISK |
KOBAYASHI NOBUYUKI
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda