Disklavier

try just replacing the floppy drive.  The newer DKC850 works, but you would also need to buy speakers.  Cost is about $2300.

Really try the link I just sent you.  You can buy a MIDI interface and connecter for less than a $100.  Send Mark Fontana some money for the PPFDBU software that converts those 750k double density floppies to standard MIDI files that you can store anywhere - preferable iCloud or Dropbox.  Get an iOS device - even used. i.e. iPod.  Get the free app Piano JukeBox and/or Sweet MIDI player in the app store.  Even if you need to purchase an external floppy drive from Yamaha ($150) you have everything you need (except internet radio for  Diskavier which you can’t get on that piano anyway).

Eventually you need to do this anyway.

Carol Beigel