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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

ProRes recording problem

Rakesh Malik

Rakesh Malik

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I did a shoot last night for a client that ran fairly late. I recorded mostly I HD ProRes using an Epic-W, on 120 GB minimags. Shot a few clips in Redcode also, but for space and recording time reasons, mainly ProRes.

After I copied the files over to my backup disk however, I found that none of the ProRes files are playable... from either minimag. I even tried loading them in FCPX on my old MBPR... no dice.

Anyone able to help with this? I have what should be close to 90 minutes of footage that's apparently toast.
 
If you've got a small clip that you can share, perhaps put it up on Google Drive or something for people to inspect. At the moment we're working pretty blind.
 
I used UDF, which I've been using for a while (in camera format at the beginning of the shoot).

https://1drv.ms/f/s!AnkPSq9AIf_fgZBfIBuVTdzJTv8vig

I didn't do anything different on this shoot other than a couple of switches back to Redcode between recordings. Both mags are showing the same symptoms.
 
Both of those files are very, very small, which makes me suspect something happened in the transfer perhaps.

Do you know if your OS supports UDF?
 
It's Windows 10, and I've been using it for several months now without any previous problems.

Those files are directly off of the media cards... plus the Redcode clips I recorded yesterday are fine, both on the cards and after transferring to a backup drive. As far as I can tell, ALL of the .mov files are that small, even though most of the clips are a minimum of 15 seconds long, some several minutes.
 
Where you able to playback from the camera at the shooting?

Just looked here and at 16kb these prores files will be unrecoverable. When you mount the minimag how much space does it say that it is using/available? And with each individual folder? How does the prores only folders compare (size wise) to the ones that have r3ds?

I've had some funky things going on with dnxhd recordings, but never with prores. Note that I've no experience with beta firmware either.
 
I haven't updated the firmware in a while, because it's been working flawlessly for around two months now... except last night. The camera tells me "no image blocks found" for the ProRes clips... no problems with the Redcode clips. The cards show around 85% capacity remaining for one, and about 50% for the other. SOME clips play back in camera... it seems random. Some are playing back black, some are playing back fine, but most give me "no image blocks found" instead.
 
Anyone know of a way to get in touch with Red tech support? I've left several messages now, and haven't gotten a reply, and the first was yesterday afternoon around when I posted this thread...
 
Rakesh Malik said:
Anyone know of a way to get in touch with Red tech support? I've left several messages now, and haven't gotten a reply, and the first was yesterday afternoon around when I posted this thread...
Click to expand...

Maybe that is because it's weekend and holiday time.
 
If you do plan on trying to recover the card it is best advised to NOT use it, and send it to Red so they can try on their end. If you have a shooting, it would be best to rent the media.
I wouldn't trust the ISO to have the exact same recoverable info as the card. Even with checksum saying so.
And about the problem, from what you described, it seems a issue with the prores encoder on the camera (not being able to write on the card or something like it). Try doing some tests that mimics the shooting situation that had this problem and see if it still occurring. If the problem persists then try changing firmwares.
 
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