Murphy....

Why is it that whenever you have important pictures on your camera disk that you cannot redo it decides to go and screw up on you??? I have two weeks worth of very important pictures on my camera, including the pumpkin patch and carving our pumpkins as well as the football game from a couple of weeks ago. Can I get them off of my card?? NOPE! It is showing my pictures through my camera but it will no upload them onto my computer and I do not know what to do... It keeps saying that I need to format my disk but I do not want to do that since it will wipe out those pictures... HELP!! If you have any ideas of how I can get those pictures off of my disk PLEASE let me know!!