I've been listening to John Williams' score of Empire Strikes Back a few times lately, and I've gained interest in listening to original scores without watching the movie or video game it is associated with. And even if I know quite a few movies and video games with great original soundtracks, I was interested in knowing a few new ones, or maybe getting reminded of some that I already knew of but forgot.
Just to be clear, when I'm talking about OST, I'm talking about movies and video games with scores that were specifically writen for them. So not stuff like Forest Gump or 2001: A Space Odyssey.