OPTICAL INFORMATION RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION METHOD, AND RECORDING/REPRODUCTION DEVICE

摘要

An optical information storage medium includes: a substrate; a cover layer; and a first information layer interposed between the substrate and the cover layer, recording of information in the first information layer and reading of information recorded in the first information layer being realized by irradiation with a light beam incoming from the cover layer side, wherein the first information layer includes a recording film and a protection film interposed between the recording film and the cover layer, and a distance between the cover layer and the recording film is not less than 0.5 nm and not more than 12 nm.