Digging up an old thread here. I've just bought a Harmony 785 and yes these things are pretty neat at the expense of what I can see could be quite a few hours of configuring, trying, configuring, trying etc.

The Logitech database seems to know about the Empeg, but doesn't have any discrete codes for things like Source, Power Off, Power On etc. As mentioned this is a big downfall of the concept when a device is missing the discrete codes - not really Logitech's fault though. I even had to go and set up my plasma to use discrete codes for on/off and input select (it defaulted to sequencing but the plasma supported the discrete codes)

For some reason it also seems to think the two sources are CD and Tuner. When it "turns off" the empeg, it actually switches it to auxiliary.

What did you guys do? At the moment I can't use my empeg remote since the battery is flat but even then it doesn't have buttons I can teach the remote to switch direct to the the MP3 or on or off.