I don't know of anyone who has a Commodore B128.
Fortunately, my friends and acquaintances own B128s - PET gurus Larry Anderson and Mike Naberezny, vice-president of the Mid-Atlantic Retro Computing Hobbyists (MARCH) Bill Degnan, and C= master repairman Ray Carlsen. In fact, we had Larry's B128 for users to play with at the Commodore Vegas Expo v8 last July 28-29. We ran some programs off of Mike Hill's product, PETdisk, when my MSD SD-2 was failing to recognize inserted floppy disks.
Happy New Year!
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug