Here's one for you. What's the lifespan of a compact flashcard? Reason I ask is that one of my 256 cards has seemed to have bit the dust. Took some photo's, used a card reader to up load them to the computer and when I put it back in the camera I got an error. Even tried using it with the computer again and it wouldn't read it either. Bout 1.5 years old and maybe 2000 clicks and movies.