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Recovery of video file that is a .dat file on the camera

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Eric Moga
Recovery of video file that is a .dat file on the camera
on Jun 9, 2019 at 2:14:26 am

Hi everyone, filming with a EOSM6 and got a "memory card error" during a shot. The camera locked up hard, flipping the power switch wouldn't turn it off so I pulled the battery and it wouldn't come back on once re-inserted. I had to use a second battery to get it to power on, even though the initial batter wasn't dead. Strange behavior for sure.

So what I have on the memory card (that is totally functional according to a test in windows) is a 3~ish GB .dat file. It copies off the SD card to my windows machine flawlessly, but is clearly not usable in any way, even if I manually rename the file to .mp4 VLC and Sony Vegas can't understand what it is. Is there any way to recover this file?

I tried putting it back in the camera (which is acting fine now) to see if it'd try to rebuild the file, but it just blinks the green light for a while and gives me a "can't playback this file" error.

Anything else I can try? Thank you!


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Francois Pénzes
Re: Recovery of video file that is a .dat file on the camera
on Jul 16, 2019 at 4:19:46 pm

Hi Eric

Do a Google search with SD recovery. Looks like your file(s) on your card got corrupted.

Cheers !

PC Win 10 Pro 64-bit 16gb Intel® Core™i7-2600k Quad Core 3.40GHz
Cameras: Canon XF305 + Canon XH-A1
Blackmagic HyperDeck Studio Mini
Vegas Pro 16, User since Vegas 3.0

''When the cutting stops, the editing begins...''


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