| 摘要 |
PROBLEM TO BE SOLVED: To provide a DRAW type optical recording medium for coping with blue laser beams. SOLUTION: The optical recording medium, in which a recording layer capable of recording and/or reproducing information on a substrate through laser beams is provided, is characterized by the recording layer containing a color producing element shown by a following general formula (1). (In the formula, rings B, D show composite aromatic rings condensed to benzene rings A, C respectively. These rings A-D can have a substituting group further.). |
