Just an update: I went with the advice of some of you and purchased a Delkin Devices 16GB CF PRO COMBAT CARD 625X (91MB/s). And yes, there is quite a bit of difference between that and the 30 MB/S cards. With my 7d, shooting raw, 8 FPS, I would fill up the buffer and it only took about 15 seconds and I was ready to go again. with the 30 MB/s card it would sometimes take 45seconds to 1 minute before I was ready to shoot again. When shooting Bifs or football I normally only pop off about 6-10 frames at a time, so, with my shooting style I normally would not have to wait at all.. Thanks for the tips and advice, I am thrilled with this card----so far. One more thing----this card comes with a very nice rigid/padded case that holds two cards and the card has a lifetime warranty. Cost for the delkin130.49, for the sandisk 169.95 and for the hoodman 299.95. We