emptool (?) is one that came up, but was that from the empeg guys?

Someone in 2002 made a replacement player. His name was elessar ("Thomee"). Link. I remember people being a little hostile to him at the idea of making a replacement player! "How dare you! What's wrong wtih the empeg software!?" (As I type this, the thread I linked to has everybody complimenting him! I wonder if I was thinking of a different thing or if he had another thread going too.)

rsync

Frank van Gestel's Displayserver. <-- This is the one I was thinking about to download mp3s. 2001!

Richard Lovejoy's Volume Adjust (integrated into Hijack.)