Video · Canon exFAT memory card
Canon XFVC: recover after a quick format
Can Canon XFVC clips and matching DAT extents be recovered after a quick format?
Short answer
Often, if no new clip followed the format: the exFAT records are new, while the XFVC headers and DAT media data usually remain. The hard part is pairing them again without the old directory. Eject the card, scan read-only and confirm each header and media extent belong together through size and full playback.
The situation
The medium now has a new empty directory, while the previous Canon XFVC clips and matching DAT extents is missing.
The format gave the card a new, empty exFAT directory in a moment and left the recorded material where it was. For XFVC that is good news with a catch: the headers and their media extents survive, but nothing now records which belongs to which.
01 / Diagnose
Work out what actually disappeared
A quick format replaces file-system records only, so the content blocks stay readable to a signature scan. The difficulty is specific to this format: with the Canon directory structure gone, the link between each MP4 header and the DAT media extent it describes has to be reconstructed from sizes, offsets and the order in which clips were shot.
A quick format can replace file-system records without immediately overwriting every older content block. For Canon XFVC, this matters because the MP4 header and recorded media extent may need to be matched by size and card layout
Check the last known path, trash and backups without writing to the original device.
02 / Protect the source
Preserve the best recovery chance
- 1
Eject the freshly formatted card and record nothing on it, not even a short clip to verify that the camera works.
- 2
Reconstruct the shot list from your notes or from a second card: how many clips, in what order, roughly how long.
- 3
Scan the card read-only in a reader, or image it and scan the image, collecting headers and media extents in one pass.
- 4
Write the results to another drive in recovery order, then test each candidate pairing by playing it from beginning to end.
Do not format the card again and do not let the camera write its folder structure back. Sorting recovered files by name or shuffling them into new folders also hurts, because after a format their position and size are the only clues to which parts belong together.
03 / Choose the method
Match the tool to the source
For stable, readable exFAT, NTFS and FAT16/FAT32 or uncompressed IMG, DD, RAW and BIN images.
Unconfirmed exports are marked .UNVERIFIED.
Everything here depends on the format having been a quick one and on the card having stayed unused since. If new clips were recorded, the media extents are partly overwritten, and File Recovery Hero cannot rebuild a Canon clip whose extent is incomplete.
04 / Verify
Check the recovered content, not just its name
Accept a reassembled clip when it plays right through at the resolution you filmed and its length matches your shot list. Check the transitions: a pairing that is wrong usually looks fine at the start and then shows a jump in content or a sudden stop.
Keep the source until two verified copies exist. One working preview is not enough.
Sources and technical references
FAQ
Questions about this recovery case
Can Canon exFAT memory card be recovered in this situation?+
The format gave the card a new, empty exFAT directory in a moment and left the recorded material where it was. For XFVC that is good news with a catch: the headers and their media extents survive, but nothing now records which belongs to which. The result still depends on what remains readable on the source.
What should I avoid before scanning?+
Do not format the card again and do not let the camera write its folder structure back.
Does scanning write to my memory card?+
Your memory card is only read. Nothing is saved to it.
How do I know whether the result is complete?+
Accept a reassembled clip when it plays right through at the resolution you filmed and its length matches your shot list.