For those of you who own a Nikon D200: Secret Embedded Text Messages Under the (Image Comment) menu. You set this under SETUP > Image Comment. You can program the D200 to add up to 36 characters of text to the EXIF header of each file. I add my name, © and phone number to each shot. Unfortunately I can't really add a © symbol (duh, Nikon) and have to settle for (c) instead. Once set it keeps adding these to each shot until you tell it otherwise, even if the camera is sold or stolen. This secret message can be read on most software like Photoshop and iView. You can use every cartoon curse-word character like &(%^*@$(, except the important © symbol.