Practically all cards work with the Nikon digitals. Be sure to test them first. Some cards that are identical will work in one camera and not in another. My company currently uses Lexar 192MB 12X cards which aren't approved by Nikon. The majority work. Some cards have failed, won't read or format. We have 12 D1X's with about 400 cards that we switch back and forth. No real problems. My own D1X I use 256MB cards and no problems so far.