It's been floating around the torrents for a couple of weeks now.. It's an 8 GB download! So I imagine it's a DVD9 or two DVD5's.
I never really liked the Flight Simulator series.. I always thought they were kinda boring.. They're not "games" really, they're just simulators (as the obvious name suggests). I remember when I used to be excited about aeroplanes and jets, Flight Simulator used to be pretty cool.. but 1996 was a long time ago.