Can anyone provide an e-mail address for QRS?  I believe that I have
a piano roll from them that is "out of spec" - i.e. the holes are too
narrow, and some are not "tall" enough as well as the edges of the
holes are "ragged" and not "clean".    I would like to contact them
and see if all rolls of this same number are punched the same or if
an replacement/exchange could be arranged.

Thanks
Harvey