REPRODUCTION-ONLY RECORDING MEDIUM, REPRODUCTION DEVICE, REPRODUCTION METHOD

摘要

Buffer areas are formed in the leading end and the trailing end of a block (RUB), a recording/reproduction unit, as a data run-in and a data run-out to make the data arrangement similar to that of a RAM disk, thus ensuring excellent compatibility. In the buffer areas, sink data (SA) is recorded in portions at an interval equal to the sink data interval in the continuous frames to allow sinks to constantly appear at regular intervals in the reproduced signal, advantageously establishing and protecting synchronization. This implements a ROM disk superior in compatibility with a RAM disk and advantageous to a synchronous system.