Hello from France!  We have a old piano (George Roger and Son) able
to play rolls and MIDI files but also able to convert the roll (or
hand-playing by a person on the piano) and convert the data to MIDI
file instantly and replay it.  Look at the video:

http://www.dailymotion.com/video/xy3m35_encodage-rouleau-piano-en-midi_music#.UT0K3jc6dAo 

 [ "Pneumatic piano with SD card reader and encoding of rolls to
 [  MIDI file and direct recording to SD card."

and the blog: http://gpto6.blog4ever.org/

We use the optic converter by Christian Blanchard, nicknamed orgautomatix:

http://www.orgautomatech.com/ 
http://www.orgautomatech.com/epages/3b85d6ba-28b0-11e2-b53b-000d609a287c.sf/fr_FR/?ObjectPath=/Shops/3b85d6ba-28b0-11e2-b53b-000d609a287c/Categories/Cartes_encodeur_Midi 

Philippe Cichon