Optical information recording medium

摘要

An optical information recording medium achieving stable recording and reading characteristics and having good storage stability including light resistance and heat resistance by preventing colorants contained in a recording layer therein from being decomposed, and also an optical information recording medium that can be individually differentiated from others by outward appearance. The optical information recording medium includes a substrate having successively disposed thereon at least a light-reflective layer, a recording layer on which information is recorded by laser light of a wavelength no longer than 500 nm, and a cover layer containing a UV absorbent that blocks out light of a wavelength no longer than 400 nm and/or a dye that blocks out light of a wavelength no shorter than 500 nm. A second substrate may be disposed opposite to a side of the optical information recording medium that is irradiated with light and may be colored.