Patent ID: 7558468

Claim:
A disk recording/reproducing apparatus comprising: a recording part which performs recording in which video or audio data is recorded on a disk; an operation part having a plurality of keys; a main control part which controls the recording part; a sub control part which controls the operation part; and a storage part configured to store information indicating that the recording has started and a record position of data on the disk, wherein in a case that power recovers from a power failure, when the storage part stores the information indicating that the recording has started, the main control part searches data recorded based on the record position in a unit of first logical data, checks validity of control data in the first logical data, and obtains a first position of final valid first logical data, which is specified as a last position, wherein when the first position is not a boundary of second logical data, the main control part obtains a second position of final valid second logical data, which is specified as a last position, the second logical data includes a plurality of first logical data, and the final valid second logical data includes only the valid first logical data, and wherein the main control part records subsequently new data on the disk from a position next to the last positions, wherein the storage part further stores a time when a power failure occurs, and the main control part compares a present time with the time when the power failure occurs and determines whether recording is subsequently made or the recording is ended based on a comparison result.