Patent ID: 7193938
Filing Date: 2007-03-20
Classification: G11B

Abstract:
1. An information recording medium having at least a read only area and a recording and reproducing area comprising at least: a substrate; a recording layer formed on the substrate so as to record and reproduce information; and a light transmitting layer having transparency formed on the recording layer, the information recording medium further comprising a wobbling groove corresponding to the read only area and another wobbling groove corresponding to the recording and reproducing area formed on the substrate without overlapping each other, wherein the other wobbling groove corresponding to the recording and reproducing area is recorded with at least a location data in a wobbling shape, and wherein the recording and light transmitting layers are continuously adhered over at least two areas of the read only area and the recording and reproducing area, and wherein reflectivity of the recording layer is more than 5%, and wherein a push-pull signal output T