OPTICAL INFORMATION RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide an optical information recording medium which includes two light absorption layers containing recordable/reproducible light absorbing materials and a BCA having sufficient characteristics. SOLUTION: In the optical information recording medium 10 which includes two light absorption layers containing recordable/reproducible light absorption materials by irradiation of a blue laser from one side, in order to facilitate formation of barcode information in the second layer in a depth side from a light incident side, the area of a first layer corresponding to the radial position forming the BCA of the second layer is used as a mirror part not including a groove or a pit, and the barcode information is recorded in a BCA forming area 17 having a groove or a pit in the second layer in the depth side. COPYRIGHT: (C)2007,JPO&INPIT