The other day I was going over some of the storm pictures I took with my old Cannon AE-1. I put the negitives away for safe keeping since I had all the old film prints scanned into my computer. Then I was thinking....What proof ( other than a water mark) do I have of a digital picture that I actualy took the picture? I mean with film you have the negitive, with digital nothing. I asked this question to a friend of mine and he said that some photographers might keep the photo's on the memory cards and never delete them but I thought that might get expensive. With all that happend with Mike H I was just wondering what someone can do to prove that the picture is thiers.