I (don't know why) use Lexar cards. I have 8x 2GB cards I carry. After I shoot a series, whether it's two or two hundred and change locations, I swap cards. After they are downloaded, I place them back in the camera to reformat. Touch wood, I haven't had any faults to date.[/quot\
OK, I went and got a new Sandisk 1G card for the last shoot. But now that i am reading this i can't help but wonder, could it be that i am not reformatting my card after downloading? I have a tendency to jump in with both feet and forget to RTFM, so having made the jump to digital i didn't think much about the process after the images come off the card. I just erase them and move on.