The PianoDisc web site (http://www.pianodisc.com) has information on
Knabe and Mason and Hamlin brand pianos.  The Knabe page specifically
states that the pianos are available with or without PianoDisc systems,
and the pianos come in 11 styles and 8 colors (!).  The Mason and Hamlin
page says they are producing three models, but does not mention players;
I hope it is an oversight.  I sent them an e-mail asking where the pianos
are being made -- I'll let you know what they say.

Meta Brown