Patent ID: 6925050

Claim:
An information recording medium comprising at least a substrate, a recording layer, and a resin layer, wherein said substrate is formed with a pit corresponding to a read only area and a groove corresponding to a recording/reproducing area, and wherein said pit and said groove do not overlap with each other, and wherein a reflectivity of said recording layer is more than 10%, and wherein said recording layer and said resin layer are formed continuously over at least two areas of said read only area and said recording/reproducing area, and wherein a push-pull signal output T 1 reproduced from said read only area is more than 0.1 and another push-pull signal output T 2 reproduced from said recording/reproducing area is more than 0.1, and wherein 1.5≧T 1 /T 2 ≧0.5, and wherein said pit is modulated by the 8/16 modulation method.