| 摘要 |
According to one embodiment, a recorder comprises: a first area generation unit configured to generate a first recording area used for recording first data in the storage medium; a second area generation unit configured to generate a second recording area in the storage medium, the second recording area used for repeatedly recording in an overwriting manner only second data, the second data being different from the first data and taken as an object of playback for a predetermined period; a management information managing unit configured to record a management information file having management information about first data recorded in the first recording area in the storage medium; and a management information edition unit configured to add management information about the second data into the management information file to allow the second data not to be overwritten, and record the management information into the storage medium.
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