Information recording medium

摘要: In an information recording medium comprising at least a substrate, layer, and resin the substrate is formed with pit corresponding to read only area 31 groove recording/reproducing 32 without overlapping each other. A reflectivity of layer specified be more than 10 %. The are continuously adhered over both areas 32. characterized in that push-pull signal outputs T1 T2, which reproduced from respectively, 0.1 satisfy inequality 1.5 ≧ T1/T2 0.5.