Couldn't seem to find a relative post... so lets see if you can help me out. Have the 5D, was shooting on the 24-105L IS USM, and I had little video glitches (like dropped frames) and then the video would just drop out and stop recording.
Checked the speed of the card.. its as fast as you can get. Was only a minute or two in on some of the takes when it happened. Happened a handful of times. When the video dropped out there was a "buffer" type icon on the right of the viewer (Shame on me, I have not looked this up in the manuel yet, just had some extra time to post at work). Anyone run into this?
I have the 7D and am starting to get this buffer signal and the camera stops filming. I have found out through observation that if I do not keep clearing my cards and reformatting them I get this fault. If I format them immediately I get this signal they work fine.
I have Kingston pro x133 16GB and I'm used to leaving files on the card until it's full. I find if the card is half to two thirds full when I start a new project I can get this buffer signal almost immediately, if I format the card to discard the existing files that have been saved, the card works fine.
Sorry that took a bit, been sick... so it is a Delkin 16GB CompactFlash PRO. Not seeing the speed on there (of course I dont have the packaging any more)... but a canon rep picked it out for me... I just asked him to give me the best one for video at a decent price. He seemed to think it was great for video.
The card wasn't nearly full when it was happening, as I remember it happened fairly early on. I'll just have to keep checking it I guess.