That's the drag about the Prod 8, you can only use those 6 buttons for learning. You can learn to almost all of the buttons on the Cinema 7 and 15-1994 remotes, but the memory is limited. You can learn to all of the button son the Sony VL900 and you get tons of memory.

The only way to find out what codes your Music Box uses is to have the signals read by a device like the Philips Pronto and look at them.

It's possible (but not that likely) that the Music Box uses the same signals as an existing device.

Rob.