Information recording medium, and recording method for information recording medium

Abstract

Aimed is to solve the problem that it is difficult to determine an optimal recording laser power since the light amount reaching the PCA of a second recording layer is changed due to the result of a stepwise change of the recording laser power with respect to the PCA of a first recording layer when the PCA of the second recording layer is located in a position facing the PCA of the first recording layer. The PCA area d1 of L0 and the PCA area e of L1 are arranged by being displaced in a disk radial direction to prevent overlap in a lamination direction, an area L0 larger than at least an eccentric amount is arranged as a physical format area d4 in both sides of the PCA area e1 to overlap on the PCA area e1 of L1 in a lamination direction, and the data areas a12 and b12 of L0 and L1 are arranged to almost face each other. In the physical format area d4, control data is recorded before a test signal is recorded in the PCA area e1.

Description

Information recording medium and recording method of information recording medium This application is a divisional application of the application filed on April 11, 2005 with the application number 200510065039.2 and the title of the invention is "Information Recording Medium and Recording Method for Information Recording Medium". technical field The present invention relates to an information recording medium and a recording method of the information recording medium, in particular to a single-sided double-layer Digital Versatile Disc (DVD: Digital Versatile Disk), which has a plurality of recordings capable of optically recording and reproducing information signals from one side. Layered information recording medium and recording method of the information recording medium. Background technique In recent years, the development of a single-sided dual-layer DVD having two recording layers capable of optically recording and reproducing information signals from one side has ...

AI Technical Summary

Problems solved by technology

In this way, compared to the end of the general test recording at about one track, the excess number of tracks is wasted, and the limited PCA area is used in vain, and the format cannot be actually formatted.

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