EOS R8 lost videos on SD card - how to recover?

[hellsq]

I lost some videos after dummy battery cable was disconnected. I can see 0 bytes mp4 files and I can see that my SD card have lots of used space - exactly like it have some videos on it.

Usually EOS utility helps, but this time I didnt notice this and moved all 0 bytes files from SD to my PC, so, there is nothing to recover in EOS utility.

I run chkdsk utility with /f argument and it creates FOUND.000 directory with .CHK files, looks exactly same size and amount as lost videos - but I cant open it in any software.

So, even if I did something wrong already - is there a way to restore video files that was lost after camera was powered off during recording?

[hellsq]

Do you really knew what you talking about? While recording, camera writes data to SD card. When recording stops incrorrectly - data stays on SD card without headers/file information. And you can get this data as .chk file after chkdsk /f. I can get unfinished viedos and audio from different cameras and recorders and I've been done it many times before - but I cant open files from Canon R8.

[Waddizzle]

Good luck and have a nice day. 

[Peter]

Just something to do next time, create a disk image of the card before running CHKDSK. Then you can play around with the copy and even send it to other people.

[hellsq]

Yes, it is always a good idea, but in this case it was 512GB SD card, it was almost full and I didnt have enough free space on my PC.