Well the mpegs floating around I've seen have all been from a dub of this tape, that a friend encoded as a VCD, then SVCD and eventually a DVD - but this would be about 5-6 years ago. A much better job could be done now if someone with the kit and the knowhow could get a copy of the tape.
I'll get in touch with someone I think is in touch with him still and see what happens.