Hi Shari, I am not quite an expert on GIFs, but I know a thing or two about manipulating digital images to hide information - steganography, and I am writing a shareware tool for the MAC that can embed data undetectably within GIF images. The first release date is scheduled for October 15. I am also working on providing an IBM version of this about one month later. If this interests you, let me know. Cheers, Romana romana@apple.com