Corrupt R3D Files?

[Stephen Strangways]

If you can, get the md5sums.txt files for the corrupt clips. They should have been made at the time the footage was downloaded from the cards with R3D Data Manager. From there, you'll be able to verify the files you have to see if they have been corrupted at some point. Even if the transfer from the CF cards worked perfectly, the transfer from there to a second hard drive could have corrupted the files. It has happened on shoots I've been on.

[Lesley Ibbotson]

Hi there, I have this exact same problem - drop frames and glitches all the way through my footage. I could not transcode it as it would just hit the first drop frame and either encode the rest as black with audio, or would crash Redcine-x pro. I took it to a post house who had a red rocket who could transcode it but with drop frames through out. It was shot on the red epic with the cards and not transferred off them using a data management programme (much to my disgust). They also deleted the cards before I could transcode it so I could not go back to them to see if the problem was on there or created on transfer off the cards. But my question is - does anyone know what can have caused this? Both the cameramen and the post house have not seen this before. The post house did mention that mobile phones can cause disturbance and we were shooting in a sports hall with lots of athletes on their phones - could this be it????????? Any thoughts appreciated.

Thanks

Lesley

[Gunleik Groven]

Haven't had issues with Epic SSDs...

This is 100% of the times I have been able to verify it a data management problem.
Dropped frames have occured to the disks, but then the reason for the framedropping allways have been obvious. Mostly vibrations of sorts.

It is interesting, though, that RED files seem more prone to datamanagement issues than most other files I have worked with.

Cheers!

G

[tomspark]

I have just been shooting a doco on an epic-x and have had corrupt files turn up. Half the frame is normal colour and the other half goes black and white with funky bright colour appearing over the top in an almost sensor like pattern. They are isolated corruptions but occur across the entire effected reels , meaning unless I can figure a solution the entire reels are unusuable. Some of the clips won't even show an image in red cine x pro, and the exported example frame was extracted from a tiff sequence export of the files I could read in Red Cine X Pro. For the clips that won't display in RCXpro the file number appears to identify the clip, but it simply has the notation 'offline' where the thumbnail would normally appear, so no clip deatails such as format etc.
I have not been able to verify if they were due to a copy error or an in camera one. Perhaps someone can help me figure out the problem, so I can hopefully avoid in future. These errors appeared fairly early in the shoot, but as we were on location in remote areas it was difficult to check all the footage as we went so as much as better data mgt would be great it wasn't an immediate option so would not have made any difference because we could not reshoot anyways. As such I only identified the problem on the effected reels when ingesting footage on return. I don't think it was a faulty SSD card as I then went on to use the exact same cards over and over again afterwards without encountering the corruption again. Any one seen this before?


I suspect its an in camera error, and my feeling is perhaps the card was not fully seated in the ssd slot as we spent quite a lot of time on poor roads, so vibration could have been a cause. Again I cannot verify. I was able to play back various shots from the card as I was shooting, that could then not be played back in red cine. At some stage on this real, but only once, an error message did come up and I had to restart the camera to proceed. It did however only happen once on one clip on the reel, yet the entire reel is effected. Unfortuneately I cannot remember the exact details of what the error message said, as I had no means of writing it down at the time, I just had to keep shooting, and my check was to see if the clip would playback and at the time it did, so I thought it just must be a bug or crash as computers sometimes do.
Cheers
Tom

[tomspark]

Anyone? I have come back to this as there is still no solution or response from red, and I would love to use this footage if in the edit. Corrupted files across entire reel - happened in 3 reels out of 60, still sitting there, unusable, not playing back with the odd frame looking like the picture above...:(