I only got a card error twice. Both times it was when I was using the kit lens wider open on a very detailed scene. I have been shooting a ton and never get any messages with non-kit lens.
Thanks for the kind words... just a test vid, but I plan to do some better stuff soon. I believe I used the D settings from when they first came out (I think they might have changed the D settings to be named C later on?)
Anyhow, my settings were:
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VIDEO BUFFER)..................................40.000.000
VIDEO BITRATE ADJUSTMENT)............50000000
OVERALL BITRATE ADJUSTMENT.........56000000
LIMITING BITRATE ADJUSTMENT.........60000000