Video · exFAT camera card
H.264 MP4: recover after deletion
How can I recover H.264 clips in an MP4 container after deletion?
Short answer
Yes, often, as long as nothing new was recorded. An H.264 MP4 only plays when its ISO-BMFF boxes and the video stream agree on offsets, timing and length. Remove the card, scan it read-only for MP4, export to another drive and compare each clip's duration with what you actually recorded.
The situation
H.264 clips in an MP4 container no longer appears in its recording folder even though the storage device is still detected.
A deleted clip is usually still on the medium, because deletion only frees the entry. The catch with MP4 is structural: playback needs the moov area and the video stream to agree on offsets, timing and length, and a partly reused file fails at exactly that point.
01 / Diagnose
Work out what actually disappeared
Deleting a clip releases the directory entry and marks its clusters as free, while the ISO-BMFF boxes and the H.264 stream stay in place. Video files are large, so one new recording can cover a long stretch of a deleted clip. Cameras also split long takes into chapters, which means a single take may consist of several files.
Deletion can release a directory reference before later writes reuse every block that belonged to the file. For H.264 MP4, this matters because ISO-BMFF boxes and an H.264 stream must agree on offsets, timing and length
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 remove the medium at once; a few seconds of new video can overwrite minutes of a deleted clip.
- 2
Note the resolution, the frame rate and roughly how long the take ran, so the recovered duration can be checked later.
- 3
Scan the medium read-only through a reader or from an uncompressed image, and let the search cover the whole capacity.
- 4
Export the clips to a different drive and play each one to the end before the medium is used for recording again.
Do not record a test clip to check the camera and do not let an editing program place preview or cache files on the medium. Video data is large and contiguous, so any new write is likely to land in the middle of the clip you want back.
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.
A clip without a readable moov area will not play even after a perfect export, and rebuilding that area is a job for a repair tool on a copy. File Recovery Hero reads exFAT, NTFS and FAT16/FAT32 media read-only, exports with a licence and repairs no video.
04 / Verify
Check the recovered content, not just its name
Play every result from start to finish, not only the first seconds. A usable clip runs for the duration you recorded, keeps picture and sound in step and does not stop early; a file that opens and then halts lost the blocks behind that point.
Does the exported clip fail to open or stop during playback? Keep the source and first export unchanged and read Recovered media files will not open before trying repairs on a copy.
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 exFAT camera card be recovered in this situation?+
A deleted clip is usually still on the medium, because deletion only frees the entry. The catch with MP4 is structural: playback needs the moov area and the video stream to agree on offsets, timing and length, and a partly reused file fails at exactly that point. The result still depends on what remains readable on the source.
What should I avoid before scanning?+
Do not record a test clip to check the camera and do not let an editing program place preview or cache files on the medium.
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?+
Play every result from start to finish, not only the first seconds.