As any FYI, the D-3, the D-10, the D-30 and the D-100 all have the same drive mechanism. Probably other models, also. This might widen the search parameters and result in more possible sources, assuming the gears match the TURBO CD in the first place, of course.
As a favor, can someone publish a full set of pictures of the drive mechanism, including a close-up of the gear drive train? And, is the drive in the TURBO CD different from the drive in the PCENGINE DUO?
Thanks
Charlie