Sometimes good memory cards go bad. Sometimes good photographers can treat their memory cards badly. It’s possible that a memory card that works fine in one camera won’t be recognized when inserted into another. In the worst case, you can have a card full of important photos and find that the card seems to be corrupted and you can’t access any of them. Don’t panic! If these scenarios sound horrific to you, there are lots of things you can do to prevent them from happening, and a variety of remedies available if they do occur. You’ll want to take some time—before disaster strikes—to consider your options.