I bought a 128meg card several months ago & have been using it happily as a transfer medium between PCs whilst not using it in my camera, and have never had any problems with data loss. However, for some reason, the camera seems to have problems with it - it either trashes random pictures when trying to view them back on the camera (which are then viewable on my PC, the compression just seems broken), or just plain old writing crap over pictures that have already been taken.
I was thinking of taking the card back to Jessops, but I don't really know if there's any point, given it seems to be a fault with the camera. It's perfectly happy with the two 32meg cards I also own.
Does anyone have any ideas??
-Alex