Hello, just found this post. I've had the same problem, my card isn't recognized by either my computer or my camera anymore, its as if its not there! I did notice the little prongs that fit into the camera from one of my readers seems bent, I'm not sure if that is what messed up the card or not. I bent the prongs back and other cards work, but not this one. I thought the problem was that the prongs ruined this card. But after reading these responses, I'm very concerned. I've had 2 times of failing cards with all of the pics from my children being lost. And now that I think about it, it was both after I went to Walgreens, used their computers to have some of the pics printed, and the cards went bad afterward. Now I'm thinking its not the prongs at all but the kiosks at Walgreens that ruined my card??
I paid a lot of money the first time to have as many of the pics recovered as possible, and I was told by that company not to delete pics from my cards anymore. I don't really know how to explain what was told to me, but basically they said that when you delete a pic, there is still a "space" on the card for that deleted file, and when you take another picture, it goes over that space, and so on and so forth. So as you delete and retake pics, they are all going over those spaces, and when you try to recover, you get a picture of all sorts of little bits of all those deleted pics. They recovered pictures of mine that had been taken to sell stuff out of my house, and those pics came up and many of the pics of my kids did not, as if the deleted files were easier to find than the ones I had saved. So after that, I buy multiple cards to use, never ever delete a pic, and I have tried to have card for different purposes. Like a card to use for pics to sell stuff on ebay etc., and a card for vacation, and a card for kids etc. so I don't have to worry about wanting to delete a bunch of stuff.
What to do about my newest problem has made me lose a ton of sleep. This card was great, I thought I was doing everything right, and now the card seems to not work at all. I only printed some of the pics for my daughter to use on a school project. It had the birth through first year pics of my son, including pics I took specially once a month to put in a 12 month package for his first year, to put up on the wall next to my daughters' 12 month pics. Now I can't access them and can never go back to duplicate that. I never printed them out unfortunately until I was ready to do it and now its too late I fear. I am clueless what to do??