I'll add a partially working driver for the disk station soon. Here's a screenshot of it with no disk inserted:

[Linked Image]

Disks boot too, but the keyboard seems erratic:

[Linked Image]

[Linked Image]

It doesn't boot the disk you provided though, this is this one: ftp://ftp.informatik.uni-stuttgart.de/pub/cm/mupid/disks/mcpm.imd

There is also an alternate firmware for it at ftp://ftp.informatik.uni-stuttgart.de/pub/cm/mupid/roms/

This seems to be the Grundig FL100? Screenshot:

[Linked Image]

Maybe it expects some kind of special terminal?