Users of the Canon EOS C700 series cameras may have noticed an issue regarding a phenomenon that occurs during ProRes recording in which the final media clip cannot be played back. Note this issue only occurs while using ProRes as your main recording format and the output recording command is set to the “On” position.
If your recording media fills up (either a CFast card or Codex Capture Drive*1) and your recording stops, you may receive a series of messages. First the “Media Full” message, followed by the “Some clips require data recovery” message. After attempting to recover any data, a final message saying “Unable to recover data” may appear. If this happens, the last clip recorded may become corrupt and recovery is not possible. Again, this issue only occurs if your media source becomes full and your clip has not completely recorded.
Listed below are the cameras affected, along with the correct firmware updates:
EOS C700 / EOS C700 PL Digital Cinema Cameras equipped with Firmware Version 126.96.36.199.00 to 188.8.131.52.00
Firmware Version 184.108.40.206.00 (or later) resolves this phenomenon.
EOS C700 GS PL Digital Cinema Cameras equipped with Firmware Version 220.127.116.11.00
Firmware Version 18.104.22.168.00 (or later) resolves this phenomenon.