recording medium and reproducing apparatus thereof

摘要

In a PVD table of a management region on the disc, a disc identifier 1 that represents the type of the data recording format of the disc, a number-of-disc-sides identifier 2 that represents whether the disc is a single-sided disc or a double-sided disc, and a disc side identifier 3 that represents whether the reproducing disc is side A or side B of a double-sided disc. A disc identifier 4 that represents the type of the data recording format of the file is recorded in a file (n) table including management information of the file. The reproducing apparatus reads the disc identifiers 1 and 4 from the PVD table and the file (n) table and determines whether or not the disc and the file are reproducible. In addition, the reproducing apparatus reads the number-of-disc-sides identifier 2 from the PVD table and determines whether or not the disc is a double-sided disc or a single-sided disc. When the disc is a double-sided disc, the reproducing apparatus determines whether the reproducing side is side A or side B.