This is the first camera I’ve had with CF cards, instead of just SD. I think I read somewhere (but can’t find again), that once you’ve downloaded all your images off the card, that instead of just deleting them, you should reformat the card to remove embedded info on the card, or after a certain amount of use, the card will become corrupted and unusable. Is this true? I never did this with my SD cards, although perhaps I should have. Thanks.