thanks for creating the driver ... the "CEPT" string seems to point to some sort of BTX screen codes, but I could be totally wrong.
Since the MUPID was a BTX machine that accepted "apps" sent over BTX, maybe these are the screen settings for the MUPID to act as a terminal.
The disk that's in the archive was in one of the drives but doesn't seem to belong to the system as it's MFM vs. the FM only MUPID disk station.
Since my floppy writing rig doesn't seem to be capable of handling FM, I'm awaiting delivery of boot disks to test my disk station.
Christian Corti put on additional firmware and disk images of his German version MUPID (which is Grundig branded), so I'm looking forward to testing more.