Not the Universal Media Remote! Learned all buttons from the XBox 360 mini DVD remote that comes with the 360 (non-core unit). Includes a text file explaining button layout.
This is a file containing the device codes for Microsoft's XBox 360. I recently replaced my normal DVD player with this new XBox, but didn't want to spend the money on a extra remote I'd use only once (to program my Pronto). Thanks to John Fine these codes were obtained using his MakeHex program and his advice and expertise. It's not perfect, due to toggle-bit issues, but simple workarounds have been employed and it works for me so it should work for you.
Quick copy of Xbox 360 remote. Split remote into 2 pages for those that don't have the directional keys. If you have directional keys, the Main page has all of the functionality.
This is a complete (as far as I can tell) listing of learned IR codes for the Xbox 360. I compiled this list from all available flies and tweaked some from media center remotes. I tested everything I could and it seems to work fine. Please feel free to send suggestions or improvements to my email. Have fun!