Michael Robin Haggie says [081214 MMDigest]:

> Is there a mechanical instrument produced that will play
> traditional player piano rolls and convert them acoustically
> and/or digitally without the piano itself?

You may wish to consider loaning your rolls to someone within the
roll-scanning community.  From this archiving process emerge MIDI
files which can be played on a computer, or will play a piano equipped
with solenoids, or a pneumatic player piano equipped with e-valves.
For more information about this process, see

  http://members.shaw.ca/smythe/rebirth.htm 

These MIDI files may also be converted to WAV files, making it possible
to create conventional audio CDs that can be played on a conventional
CD/DVD player in your home or in your car.  There are quite a number
of computer utilities out there that will convert MIDI to WAV.  I use
Audio Compositor, not because it is best, but simply because it is what
I started with, and am comfortable with.

Hope this helps a little.

Regards,
Terry Smythe
Winnipeg, Manitoba, Canada
http://members.shaw.ca/smythe/rebirth.htm