Richard Groman states in the MMD posting for 100604, "This
makes Keystone's new recordings the only accurate piano rolls
available today."

I beg to differ with that.  Sierra Music Rolls makes piano and
nickelodeon roll copies that are not only exact copies of the
originals, but have the errors and defects often found corrected
as well.  Our customers will attest to the quality of our rolls.

Bob Billings - Sierra Music Rolls
Reno, Nevada