Disklavier

I recently found several videos on YouTube with a theater organist 
named Jim Riggs playing an organ as a duet with a Steinway PianoDisc 
piano.  There are six duets and I love the sound of the arrangements 
from the PianoDisc, which were taken from old Ampico reproducing 
rolls.  The rolls were mostly played by Vincent Lopez and some of the 
titles were:  "June Night,"  "Singing In The Rain," "Home In 
Pasadena," "Hello Bluebird," and "I Want To Be Happy."  I looked in the 
PianoDisc catalog and can't find these files.  I would love to be able 
to play these arrangements on my Yamaha.  Since the songs were played 
on the Steinway/PianoDisc while Jim Riggs played the organ, there must 
be a version available somewhere.  Can anyone help?  Thanks.