The 5100 was nothing like the mk3 unit (except physically - and then you'd be comparing it with the Pioneer and Sony unit too). The mk3 was networking-heavy, plus all the advanced stuff from current mk2s.

To give you an idea, the 5100 wouldn't rip or compress CDs at all; it'd play them, and you could copy mp3 files from it. It was basically a neo35 with an IDE CD-rom - there was no music management, etc.

Hugo