Optical information recording medium, optical information recording method, and optical information recording apparatus

Abstract

An information recording medium according to the present invention includes a plurality of recording layers, and a test area for determining a recording power of a laser light for each of the plurality of recording layers, in which a first test area of a first layer and a second test area of a second layer adjacent to the first layer are provided at different radial positions.

1 . An optical information recording medium comprising:
 a first information recording layer on which a signal is to be recorded by laser light; and   a second information recording layer on which a signal is to be recorded by laser light which passes through the first information recording layer;   wherein:   the first information recording layer includes a first predetermined area for performing a test recording operation on the first layer, and at least one of a reproduction-only area and a recording and reproduction area;   the second information recording layer includes a second predetermined area for performing a test recording on the second layer, wherein a start location of the first predetermined area is radially offset from a start location of the second predetermined area; and   at least one of the reproduction-only area and the recording and reproduction area is positioned on the first information recording layer so that, for all test recording performed on the second information recording layer, laser light for recording a signal in the second predetermined area of the second information recording layer passes through only one of the reproduction-only area and the recording and reproduction area of the first information recording layer.