Wow, Thanks for the quick reply... Fortunately, I just found some discrete codes for all of this actually ON the phillips web site. They were in the Pronto section (I'm kinda new to this customizable remote thing). They were in .pcf files, which i guess are for the Pronto NG, so I downloaded the ProntoEdit NG software, and can view the IR codes themselves.. I now have to figure out how to get them into my XM-500. Just another challenge!