| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the various adverse influences on recording and reproducing operation by preventing the dislodgment of printing information which has been printed on the cartridge surface of an optical recording medium. SOLUTION: The optical disk of the optical recording medium in which the optical disk is housed within the cartridge is composed of a disk substrate having translucency to a laser beam, a recording layer and reflection layer formed on this disk substrate, a printing layer constituting various kinds of the visible information formed on this reflection layer, etc. |
