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Canon DSLR recorded a random DAT file amongst the MOV's

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Karyn Reohr
Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 22, 2010 at 5:37:09 am

I am not sure how this happened but while recording an event, one of the video files in the middle of the event is a DAT file rather than MOV.

I've Googled DAT to MOV conversion and think I can save it, but what I"m more curious about is, how the hell did that happen?

I have probably 20 MOV files and there's one right in the middle that's a DAT. It's at the file limit for the DSLR's (~12 min) but so are several other files and they managed to behave. Why do I have a renegade DAT file that came off my SD card?

Shooting with a Canon 60D and a Class 6 SD card in full HD.

Any insight would be greatly appreciated so if I did something I can avoid it in the future! I swear all I did was hit record again when the camera hit each file limit.

Also, if anyone has experience with converting this to usable format in FCP, let me know.

Thanks!
Karyn


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Karyn Reohr
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 22, 2010 at 11:03:14 pm

I think I figured out what happened...my assistant opened the battery case to change batteries while it was recording so the camera shut off in recording mode.

I am now thinking I have a corrupt DAT file that may still contain movie data (I'm hoping it does)! Several DAT to MOV software programs have failed to open it.

Does anyone know how I can repair a corrupt file, or one that was not "closed" properly during record mode?

Thanks,
Karyn


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Peter Burger
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 23, 2010 at 11:11:56 am

To find out, if the file contains movie data, you could try opening it with the free VLC-player. It most of the times plays even corrupt files. Haven't tried it with DSLR-video, but it almost always plays corrupt .wmv or .avi files, that won't open in any other player.

Can't help you with the question of how to repair the files, but maybe this could help you to assure, if there is usable movie data in it...


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Morton Molyneux
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 23, 2010 at 8:40:51 pm

You can try http://aeroquartet.com/

I used them to repair a corrupted clip earlier this year.

cheers

Morton



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Karyn Reohr
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 23, 2010 at 11:30:42 pm

Morton...you are a life saver. Can I send you a free drink? I wish I could over email!

It looks like their program is going to work for me. Thank you SO much, I really mean it. It's the difference between getting paid for a $500 job, and not. But more importantly to my client, it's the speech given by the sister of a beloved pediatrician in our community who died falling off a ladder putting Christmas lights up for his family. It really means a lot that the funeral video is intact.

Again thank you SO much for seeing this and responding to it.

Karyn


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Morton Molyneux
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 27, 2010 at 1:37:38 am

Not a problem Karyn, glad to help. Now drinks by email that would be nice. A friend of mine fell off a ladder doing the same thing 4 years ago just before Christmas. Very badly broken ankle but survived. His wife will not let him forget it though.

The video clip that I had go bad was also the result of someone turning the camera off before stopping the recording.

cheers

Morton



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mac amos
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Jul 2, 2012 at 10:23:15 am

Hi Karyn .. I have the same problem with you. My supposed to be .mov file turns to .dat file. I am not sure what happened. How did you sent your file for fixing? the .dat file alone? Thanks


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Xiaofen Zhang
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Jan 4, 2016 at 5:11:10 am

Thank you for all the info! I am a videographer. I used Canon 6D and recorded a speech at a wedding yesterday. There were several speakers and it went on for close to 25 minutes. I didn't press stop and record even once thinking it just will split the file until the 29 minutes limit is reached, which I will never do again. So what happened was that the camera overheated and shut down at around 24 minutes, suddenly went black. I kept recording onto the same card for the rest of the night. After I downloaded the data, I found a DAT file over 4GB, and I found this thread. It happened that my chinese cousin is here and found an identical service by a company in China doing business on taobao.com. They did a great job for less than $30, recovered the file for me within a day. But it only had 13 minutes of movie. Now I wonder if the second part of the movie's data is permenently lost since there was only 1 DAT file. For the people who had this problem, did you recover all your recording or just part of it? Thank you!


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Bill Prickett
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Jun 9, 2016 at 7:53:20 pm

IT WORKS!!!
I just used it on a clip shot with a Canon 5d3 in which the AC Adaptor popped out of the slot and the camera shut down.
The service works and the people are very helpful.


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Karyn Reohr
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 23, 2010 at 11:17:01 pm

Hi Peter,

I tried to open it with VLC. VLC "opened" it and the timeline started to play, but no video or audio appeared. It was like a silent file.

Thanks for the suggestion! I will try the other solution of that company, if anyone else has any other referrals to companies that will repair corrupt files in this situation let me know! (I.e. Situation is most likely that camera was abruptly shut off while recording to SD card and video data is now in a generic DAT container file which should have been in MOV).

Thanks,

Karyn


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Jason Ramirez
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Dec 22, 2011 at 5:08:32 am

Hi, was this ever resolved, I too have this issue now.
??
Thanks


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Angel Andres Rosado
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Jan 17, 2014 at 11:24:51 pm

Yes, I do believe the original poster's problem was solved. Go to the website for the company named "Aero Quartet".

I used them and they charged me about $10 per minute of repaired h.264 .mov video from my canon t3i ($63 for a 6m11s clip)

Here's their link: http://aeroquartet.com/movierepair/repair.html


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Robert Newton
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Nov 10, 2015 at 2:47:35 pm

Just want to pipe in here. SO glad I found this thread. A few months after we shot an event with a couple of 5Ds, found one critical .mov file was corrupt and reading as a .DAT file. http://www.aeroquartet.com service completely saved us. Salvaged the 2gig file and had it back to us in an hour. Cost us $95, but well worth it.

Robert N.



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Xiaofen Zhang
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Jan 26, 2016 at 6:41:55 am

The site you recommended is very good, but a little pricy, it's $79 for 10 minutes of DSLR clip. They have this "Treasured" free diagnose software that let you see the clip which is awesome.
But since I'm Chinese, my cousin found an online service store under App "TaoBao" (A chinese online platform that has all kinds of stores selling merchandises or services) who does the same thing. I got a 9 minutes clip repaired for 100 RMB, which is 15 US Dollar:) But they only communicate on TaoBao or WeChat, and they don't use Google Drive, etc. only take files uploaded via the Chinese web "Baidu". And payment is something called "AliPay" which is the Chinese version of Paypal. If you have a Chinese buddy, this can be done.


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Jack Stevenson
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on Apr 28, 2017 at 6:38:40 pm

Hi,

I have the same with a 5D mk4, the power was cut while recording.

my .DAT files are the last files on the card and are zero KB, is this the same as those of you who have had footage recovered from .DAT files?

Also the clips previous to the .DAT files reach their 4GB maximum and I cant work out if there should be footage in the .DAT files.

Thanks in advance.
J


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Julien Barraillé del Santo
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on May 1, 2017 at 8:45:09 am

Hi all,

I was filming with a canon 6d when it just shut down while shooting. The file appeared as a .DAT instead of .MOV.
The cheapest way I managed to fix this was with http://grauonline.de/cms2/?page_id=5 video repair software from Grau.
The cost was 35€ for repairing 5 files. It did the job perfectly, the file has been recovered and I could use it for the edit.

Hope this helps.


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Jack Stevenson
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on May 1, 2017 at 2:31:01 pm

this has happened to me twice and both .DAT files show as zeroKB. I'm not sure weather to believe it twice a row!?

anyone whose recovered footage from a .DAT did you have the same??

J


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Julien Barraillé del Santo
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on May 1, 2017 at 3:48:49 pm

My .DAT file contained 230mb of info. This means it has something in there to be recovered, zero Kb means there is nothing to rescue. That software I used to recover the file is Grau GmbH video repair. You first download a trial version to see if your file is "rescuable". It will rescue 50% of the file, upgrade by paying around of 35€ and you will be able to rescue 5 video files. This is the lowest cost I found.


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Jack Stevenson
Re: Canon DSLR recorded a random DAT file amongst the MOV's
on May 1, 2017 at 4:02:19 pm

Thanks for the reply, Im confused as to why it would of created the file if there was nothing in it.

I'll check out the software. Thank you!


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