Sony TRV315 Operating Instructions Manual page 46

Searching a recording by date
Notes on the date seach mode
•The date search works only for tapes recorded in the Digital8 system.
•If one day's recording is less than one minute, your camcorder may not accurately
find the point where the recording date changes.
If a tape has a blank portion in the recorded portions
The date search function will not work correctly.
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