Following up to the request for Welte-Mignon piano roll recordings on
CD.  A whole series of CDs of Welte-Mignon rolls was in the shops in
London a few years back -- they were all flagged 'Welte-Mignon 1905'.
They may still be available.

Looking at Amazon.com for 'Welte', they have two CDs in stock:

 (1) Welte-Mignon - Bach/Busoni, Mozart/Liszt, et al / Horowitz
 (2) Welte-Mignon - Grieg, Mahler, et al play their own works

Both of these are on the Interchord-Allegro label, $13 each.

Amazon, and several other shops on the Internet, offer very good search
facilities for records currently available.  I don't know where to find
listings of deleted material, though.  Any suggestions?

Julian Dyer