I had the chance of a lifetime to go to Cuba for a week and I shot about 5k pictures on my Canon 50d with the sandisk ultra III cards. I have used these cards with no problems before and uploaded them easily. I got back today and went to plug the cf card into my card reader and it started downloading. It wouldn't load pictures and it said that it was going to take days to upload so I hit the eject button on the computer and disconnected it. I then replugged it back in and it instantly gave me an error saying that my device was not readable by my computer........ I put the cf card back into my camera and it gives me an error saying the card is unreadable. I didn't do any reformatting because that would worsen my chance of getting the images back. I then went on to another card and same issue. I ran disk utilities and it still didn't help. What can I do?!?!?! there is no chance to ever go back there and get the shots I took and I need them for my portfolio that I'm handing out to colleges and cilents. PLEASE HELP!