Patent ID: 8067080
Filing Date: 2011-11-29
Classification: G11B

Abstract:
1. An optical recording medium comprising, in sequence: a first substrate; a first information recording layer; an intermediate layer; a second information recording layer; and a second substrate having wobble convex portions on a surface of the second substrate facing the second information recording layer, wherein information is recorded on or reproduced from the first information recording layer and second information recording layer by irradiation with a laser beam from a side of the information recording layer facing the first substrate, wherein the second information recording layer includes, over the second substrate, a light reflective layer, a dye recording layer, and an inorganic protective layer, wherein the inorganic protective layer has a thickness of 3 nm to 40 nm, and wherein the dye recording layer includes a cyanine compound expressed by General Formula (I) and a squarylium compound expressed by General Formula (II): in which, ring A and ring B are each a benzene ring or a naphthalene ring that may have substituent(s); among R in which, R