Fuzzyfireball: There is also some sort of rights issue with the mechs in one of the games last I heard.
Arkose: Oh yeah, that too. MechWarrior 1 and 2 (and possibly 3) include some of the "
Unseen" mechs that are no longer licensed for use.
3 should not contain any "unseen", that game was made after the whole legal debacle was settled.
That whole legal issue stinks though. For those who don't know, FASA got the rights to use these mechs from their creators, yet the company that released the movies/tv-shows containing those mechs in the US went to court against FASA due to those mechs being included in Battletech
Anyway, MW3 has some serious compatibility issues on modern hardware. While some people have been able to get the game to run, many others have not. The most common issue is a simple crash to desktop, but other issues have been reported, like bouncing tanks (that sooner or later will bounce so high that they'll never land) and things disappearing into the ground.
Microsoft currently has all the video game rights to the old FASA games (or at least Shadowrun & Battletech), so GOG needs to strike a deal with them. It is possible that they'll also have to get Catalyst Game Labs (and thus Topps) involved as well, as they currently have the rights to most of the Battletech (& Shadowrun) things. And even then, the individual game rights are scattered all over the place.