20.1 Don’t use the camera for playback!
Although High Definition (HD) cameras are usually capable of playing back a tape I strongly advise you never to do this. In absolute extremis, perhaps, but that does not include the director wanting to see a printed tape or any continuity problems. The Video Tape Recorder (VTR) on the camera is primarily designed as a record unit and without tedious precautions will assume that is your requirement and happily record over any material already existing on the tape. Believe me, I know!
If you absolutely have to use camera playback and it is only needed for reviewing a few seconds, say up to 30 seconds, of the last take then hold the Ret (Return) button down until you are that far back and then ...