Endless Paradigm

I bought TJL limited edition, and it markets them, from the box, the discs, and the fact that both will install independantly, as different games.

However, i cannot seem to find the difference online. They seem to be listed as a single game everywhere, and its confusing me. for now, im installing both, but i still want to know, if anyone here has played the limited edition.
By the way, if you havent, get it. The soundtrack alone is worth what i payed for it

there's "the longest journey" http://en.wikipedia.org/wiki/The_Longest_Journey
and then there's "dreamfall: the longest journey" http://en.wikipedia.org/wiki/Dreamfall

never played em though, had a friend who got into it