WRITE-ONCE INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION RECORDING METHOD, INFORMATION REPRODUCING APPARATUS, AND INFORMATION REPRODUCING METHOD

摘要

According to the present invention, multiple space bitmaps (SBMs #0 and #1 30 ) are provided for the user data area of each recording layer. A disc management structure update unit including one of those space bitmaps and a disc definition structure (TDDS 32 ) and having a size of one block is written on a management information area (TDMA 17 ). As a result, data including the disc definition structure (TDDS 32 ) can always be arranged in the first block at the top of the management information area (TDMA 17 ).