INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, AND INFORMATION REPRODUCTION DEVICE AND METHOD

摘要

An information recording medium (11) includes a guide layer (12) having a single spiral guide track preliminarily formed, and a plurality of recording layers (13) laminated on the guide layer. At least one recording layer among the plurality of recording layers has a region for recording and updating, as management information related to the data recorded in each of the plurality of the recording layers, at least (1) track position identification information for identifying the all track positions, (2) valid data identification information for identifying the valid data in the track, and (3) invalid region information for generating a prescribed amount of invalid regions. In the guide layer, identifiers are recorded which indicating that the plurality of recording layers have regions for recording and updating management information.