| abstract |
An optical recording medium (100) comprising two recording layers, namely a first recording layer (102) and a second recording layer (105), is disclosed wherein the second recording layer (105) contains a metal-containing azo dye represented by the general formula (I) or the general formula (II) below and has a light absorbance 1.3 or more times as high as that of the dye contained in the first recording layer (102). Consequently, the recording characteristics of the second recording layer (105) are improved. (In the formulae, ring A1 and ring A2 respectively represent a nitrogen-containing aromatic heterocyclic ring; ring B1 and ring B2 respectively represent an aromatic ring; and X represents an alkyl group substituted with at least two fluorine atoms.) |