I worked as a DIT on a high end commercial production last week, and had issues with 2 16GB RED CF cards failing in the field. We had no problem until two days into the shoot. Late in day 2 one card came out of our B camera and was placed into a card reader, it didn't mount on the desktop. We put the card back in the camera and nothing showed up. I contacted RED and sent the card back for data recovery the following morning. The next shoot day, day 3, everything was back to normal. We were shooting with our A camera and mid way through the morning the camera recorded three clips to a card just fine, and then on the fourth clip it froze during it's POSTING operation for about ten minutes. I hit record again to see if I could end the cycle and then after no response hit Power. That card was not readable by a card reader or the camera again. I sent that back to RED last week.
We had two different cards fail in two different camera bodies. The weather was mid sixties, no rain. One of the cards never reached the flash card reader in the computer, so it wasn't a Lexar card reader malfunction.
Red has been recovering the data for the last week, but I need to figure out what happened. RED hasn't figured out what happened.
Any ideas, comments, similar experiences would be much appreciated.