ok, so I've gone to www.hifi-remote.com and looked through the site. I still don't really understand this discreet code stuff (and the "device codes" and the "advanced codes").

I know I need to get another remote to supplement my MX-500 like the Cinema7, etc. But where do you start doing research on really recent devices (like plasma screens, etc) and for functions other than on/off (like Audio->set to DVD)? I'm feeling like kind of a dummy here, sorry about that...but, help!?!