Video · high-capacity exFAT card
long 4K MP4: recover after deletion
How can I recover multi-gigabyte 4K MP4 clips after deletion?
Short answer
Yes, but long 4K clips are harder than short ones: they span many clusters and are more likely to be fragmented or partly overwritten. Stop recording and scan the card read-only. Estimate each clip's size from duration and bitrate, then accept only hits that match that size and play to the end.
The situation
multi-gigabyte 4K MP4 clips no longer appears in its recording folder even though the storage device is still detected.
A deleted clip of several gigabytes is still on the card, but it is spread across far more clusters than a short one. That makes two things more likely: that part of it has already been reused, and that the recording was fragmented in the first place.
01 / Diagnose
Work out what actually disappeared
Deletion releases the whole chain of clusters at once, and a long 4K take occupies thousands of them. A scan that finds the beginning of the file has to follow it correctly to the end; if the camera wrote the take in pieces around existing files, the recovered clip can start well and break later.
Deletion can release a directory reference before later writes reuse every block that belonged to the file. For long 4K MP4, this matters because large clips occupy many clusters and face a higher chance of fragmentation or partial overwriting
Check the last known path, trash and backups without writing to the original device.
02 / Protect the source
Preserve the best recovery chance
- 1
Stop recording and eject the card now; a long take leaves a large target for any new footage to land on.
- 2
Work out the expected file size from the duration and the bitrate you filmed at, and note whether the take was split into chapters.
- 3
Scan the card read-only through a reader, or image it and scan the image, so nothing is written to the source.
- 4
Export to a drive with plenty of space and play each candidate right to the end before deleting anything else.
Do not film again on this card and do not let the camera or the operating system repair the volume. Judging a result by its thumbnail is another trap: a fragmented 4K recovery often shows a perfect first frame and falls apart minutes later.
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.
Heavy fragmentation is the real limit here: File Recovery Hero reads exFAT, NTFS and FAT media read-only and exports what it can identify, but a long clip whose middle section was overwritten cannot be made whole again, and it does not repair damaged MP4 files.
04 / Verify
Check the recovered content, not just its name
Compare the recovered file size with your estimate from duration and bitrate; a result far smaller than expected is incomplete. Then play it all the way through, watching for the point where the picture freezes or blocks up, which marks where the chain of clusters went wrong.
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 high-capacity exFAT card be recovered in this situation?+
A deleted clip of several gigabytes is still on the card, but it is spread across far more clusters than a short one. That makes two things more likely: that part of it has already been reused, and that the recording was fragmented in the first place. The result still depends on what remains readable on the source.
What should I avoid before scanning?+
Do not film again on this card and do not let the camera or the operating system repair the volume.
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?+
Compare the recovered file size with your estimate from duration and bitrate; a result far smaller than expected is incomplete.