QUOTE (artfulpics @ Mar 15 2009, 09:51 PM)

Good luck with that. If you find out, please share. I deleted all mine back when I was pacificphoto, and it took weeks of doing it one at a time.
Chris

You don't say which camera you are using, but it means delving into the menu section on your camera[grrr]. You are then looking for [usually !!] CARD SET UP. Then you should see on your screen ALL ERASE & FORMAT. scroll to ERASE and hey presto, you have then lost everything on your card!!
The FORMAT should be used when you buy a new card, just to remove any manufacturers crud which might be there, and to introduce in the nicest possible way the new card into the stack of high tech entrails of your camera.
Hope all works O.K. for you,
Mike.