[ Skip Klosz wrote in 180930 MMDigest:
> Does anyone know the difference between the "scan image" and
> "eRolls"?

Hello Skip and all MMD,  This is an eternal problem of definition and
confusion.  Years ago, Terry Smythe addressed this question on his
great web page about roll scanning issues, now accessible at

  http://www.terrysmythe.ca/e-rolls.htm 

My personal contribution about the difference between e-MIDI and e-Roll
may be found there too:

  http://www.terrysmythe.ca/e-rolls_02.htm 

Hope this helps.

Walter Tenten