Optical recording medium.

摘要

An optical recording medium of a single plate type capable of recording comprises a transparent resin substrate having a groove of 900 - 1800 ANGSTROM in depth and 0.3 - 0.6 mu m in width, a recording layer containing a dye overlying the substrate, a reflective layer overlying the recording layer and a protective layer overlying the reflective layer, the thickness of the recording layer being 800 - 1250 ANGSTROM at the groove portion and 500 - 1100 ANGSTROM at the land portion.