I seem to remember something before you could Right Click to download files (and before we had ftp in Hijack) that let you download files from the empeg. It was a hack, but I don't remember if was a command line thing or ftp. Actually, I think it was command line because I remember it crashed after so many tracks

EDIT: And Mark Lord's Fidsift

Tony Fabris made empegface and LogoEdit.

Someone made a program that converted gifs or jpgs into the .raw format for the Escher visuals.