Optical information recording medium

摘要

The present invention provides an optical information recording medium which is not adversely affected by temperature and moisture during use and retains stable recording and reproducing properties over the long term. The optical information recording medium comprises a substrate, a recording layer formed on the substrate and a transparent sheet formed on the recording layer through an adhesive layer, wherein a surface of the transparent sheet is provided with a high-molecular compound layer having a saturated water absorption rate of 0.01% or less.