Understanding CF cards for HD video?

[Jon Fairhurst]

Originally Posted by Kin Lau

You have to remember that UDMA CF's are designed more for DSLR's with their "bursty" style of files writes rather than the constant but much lower speed writes of video.

Without a data analyzer, we don't know that the video output isn't bursty. For all we know, the DIGIC writes to RAM and then bursts to the memory between scans.

I'm not saying that I think it's bursty, but we can't assume that it's not.