Optical recording medium and production thereof.

摘要

An optical recording medium comprises a substrate (1), a recording layer (2) overlying the substrate such that the recording layer is not present at the inner and outer peripheral portions of the substrate, a metal reflective layer (5) overlying the recording layer such that the inner periphery of the metal reflective layer consists with that of the recording layer while the outer peripheral portion of the reflective layer extends over the outer perphery of the recording layer, and a protective layer (7) wholly covering the metal reflective layer extending over the recording layer both at the inner and outer peripheral portions. The optical recording medium exhibits an excellent adhesion strength of the protective layer even when stood under high humidity and high temperature conditions for a long period of time, and the protective layer is not peeled off when subjected to a tape peeling test.