If you look at some software's EULA, you too can't display games like Flight Simulator to the public even for promotion purposes that might help the game's sales.
For music and movie, they are also not for public consumption (stated clearly in any legit DVD movie opening screen/back cover). I don't know if what siben says are true, but, I guess it is. Different rates could apply for public usage, and special permissions is needed as well.