INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCTION DEVICE, METHOD FOR REPRODUCING MANAGEMENT INFORMATION, INFORMATION RECORDING AND REPRODUCTION DEVICE, AND METHOD FOR REPRODUCING AND RECORDING IDENTIFICATION INFORMATION

摘要

According to an embodiment, in an information recording medium which includes a plurality of recording layers, each of said recording layers is provided with at least one preformat area divided into a plurality of segments along the circumferential direction. Management information containing identification information for identifying each of said recording layers is recorded in said at least one segment in the recording layer with a BCA mark having a uniform shape in the radial direction. The BCA marks according to said management information are recorded in mutually different segments in adjoining recording layers.