It's now easier to use a custom BGM while playing. I still like original soundtrack made for game but sometime do you use a custom one in some case?
I know for exemple i like to use initial D soundtrack while playing racing game.
Recently i listen to a lot of mintjam while playing Ace combat 6, probably because that's sound a lot like old ace combat music (the first and second)
I often play better while using those.
The funnier is after using a song for a long time while playing a particular game, that's song is tied to that game when i hear it again. That's the case for exemple for Shadow among the ruins. I used this song to wander throught the ashland of morrowind.
Am i the only one? another exemple maybe?