Whoa -- While the Empeg certainly won't control a headless MD changer, let's not knock minidiscs in general.
MDs are great for many reasons; IMHO they got "right" many of the faults of CDs, incl. track/disc naming, protected read/write surface, reusability, small size. And vs. portable MP3 hardware, they're a much cheaper storage-per-minute (and of a constant length).
I've got a minidisc head unit, with plenty of MDs in my armrest, with all-time favorite albums and mixes. Perfect for when I don't happen to have my Empeg with me. And I never have any awkward CDs floating around the car!
Anyway, I highly recommend an MD+Empeg setup, even if it didn't work out in this particular case.
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Empeg Mk. 2 #626, 18Gb blue | Kenwood KMD-X92. 2000 VW Passat wagon.
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Empeg Mk. 2 #626, 48Gb blue | Kenwood KMD-X92. 2000 VW Passat wagon.