I've read here that few DVD players have discrete codes. I have the same DVD player and learned the functions into my MX-500. I haven't tried this yet but for macros the advise here was: "a discrete "On" code could be simulated by using "play" [then a delay] and then "stop". A discrete "Off" code could be simulated bt "play", pause, "stop" and then toggle "power".

I'll try that this weekend - I'm sure it will work in a macro, but whether that's what you wanted....

Good Luck!