Video · exFAT camera card
H.265/HEVC MP4: find after an import failure
Where are HEVC clips in an MP4 container after a failed import?
Short answer
First look at the destination, the trash and any transcode or proxy folder your editing software created. Some import tools convert HEVC on the way in, so the missing clip may exist under another name or format. If the original MP4 is gone from both sides, scan the unused card read-only.
The situation
HEVC clips in an MP4 container is incomplete at the destination and no longer appears reliably on the source.
The clip is missing at the destination and unreliable on the card, which usually means the transfer broke somewhere between copying and clearing the source. Before assuming a loss, work out which HEVC file the import created and where it put it.
01 / Diagnose
Work out what actually disappeared
Many import tools do more than copy HEVC: they transcode to an editing codec, generate proxies, or rewrap the stream, and they file the result under a new name in a cache folder. If the job died halfway, the original may already have been removed from the card while only an unfinished derivative exists at the target.
Move, rename, catalog and delete-after-import steps can fail at different moments and leave source and destination in different states. For H.265/HEVC MP4, this matters because the container, HEVC parameters and timeline all need to remain consistent
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 the import tool and leave the card alone; do not let a retry overwrite the partial files it already created.
- 2
Look through the destination folder, the trash, proxy and transcode caches, and sort by date so newly created files stand out.
- 3
Only when the original is gone from both places, scan the untouched card read-only for MP4 signatures, or image it first.
- 4
Write recovered originals to a third drive, keep them separate from the proxies, and re-link your timeline to the full-quality files.
Do not let the import software delete the originals when you restart it, and do not empty the trash before you have compared everything. Reformatting the card because the import seemed to succeed is the mistake that turns a search into a real loss.
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.
File Recovery Hero reads the camera card and uncompressed images, not APFS, HFS+ or ext4 volumes, and it does not undo a transcode. If the destination disk holds the only copy, look to its trash, a Time Machine backup or a filesystem snapshot instead.
04 / Verify
Check the recovered content, not just its name
An intact original decodes in H.265, shows the resolution and bit depth you shot in, and matches the file size recorded on the card. Proxies look similar but are visibly softer and much smaller, so check the data rate before you conclude the original came back.
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?+
The clip is missing at the destination and unreliable on the card, which usually means the transfer broke somewhere between copying and clearing the source. Before assuming a loss, work out which HEVC file the import created and where it put it. The result still depends on what remains readable on the source.
What should I avoid before scanning?+
Do not let the import software delete the originals when you restart it, and do not empty the trash before you have compared everything.
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?+
An intact original decodes in H.265, shows the resolution and bit depth you shot in, and matches the file size recorded on the card.