Hi, Awful, awful problem. Wife just started photo business, shot her first wedding Saturday for my cousin. Reviewing pictures on our Canon Rebel XT afterward, and the card seems to have screwed up terribly. Other cards work both in our camera and in our card reader plugged into our Mac, so neither of those are the problem. The card is a Kodak CompactFlash 512 MB. The computer does not even recognize that a card has been plugged in. The camera says busy forever, but eventually pops up in iPhoto and says no images are on it. I would like to try a software recovery, but if the computer can't even see a card plugged in, I don't know how that would help any. ANY and all help and advice is appreciated.