Hello.  Roll scanning serves many purposes, and the positive far
outweighs the negative in this case.  I would not only endorse roll
scanning, but also note retiming to grid, as many old rolls have
musically questionable timing errors, particularly recuts.  But even on
a poorly timed arrangement, thanks to modern MIDI programs, this can be
easily fixed, and also formatted for the perforator that will be used.

It's absolutely silly for anyone to claim any old roll their own,
except for a new performance.  Recently I found one of my arrangements
of "Thunder & Blazes" on a web site, and while I admit it was rather
annoying, I realized that it was really no big deal.  I sold copies
of that roll seven  years ago, and not that many; my world didn't end.
And just what would I gain by suing?  It's absurd to claim rights to
Ampico or Duo-Art media, unless it's specifically copyrighted.

Archival Roll Scanning, preserves an important part of a quickly
disappearing media, and also has the byproduct of enabling the new
solenoid pianos (and owners) to also enjoy the old arrangements.

My two cents,
Andy Taylor
Tempola Music Rolls