To David Fowler (990906 MMD):  Buy the Young Chang and pull out the
PianoDisc player mechanism and put it in your Yamaha.  The worst-built
Yamaha is better than a Young Chang, in my personal opinion.

You might look at the newest version of the Yamaha Disklavier.  It
plays Yamaha discs and standard MIDI files with several hundred sounds.

Don Teach