I have a xD card H 1GB that i have been using for a few months without any problem. However, tonight i tried to use load it in my camera and the camera said there was an error with the card and requested to format it, i did it but nothing happens, it still says there is an error with the card. I tried connecting it to my iBook via a USB card reader but it won't recognize it at all (it doesn't show up in Finder/Desktop). What can i do?