I've read that you should format the card in camera but I knew that would mean the pics would start back over at 001. I was originally concerned about duplicates but come to think of it, I have LR set up to name the files by the date first then image # so I guess it's ok to go back to 001 each time. Also, at one point I recall deselecting import in iPhoto and yet it still opened asking if I wanted to import. So I guess I just got used to it and developed a workaround. I will give those hints a try. Thanks.