| 摘要 |
PURPOSE: A recording apparatus and method, a reproducing apparatus and method, and a recording medium are provided to reproduce data accurately and securely by using a synchronous signal with forming grooves and pits based on frequency. CONSTITUTION: Address information composed of embossed pits and recorded in a ROM(Read Only Memory) track is formed while being wobbled in accordance with a wobble signal. When a recording medium such as a disk containing wobbled address information is to be reproduced, both the address information read out and sync information obtained from the wobble signal are used for reproduction of recorded data. Since a sync signal is obtained from the wobbling, the exact operation of reproducing the recorded data is performed precisely even in case the address information is read out merely partially due to some harmful influence caused by the existence of dust deposited on the surface of the disk.
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