The site you mentioned, is for people who want to use custom BRSTMs in Brawl, or whatever other games can be hacked with custom music, like New Super Mario Bros.
It also means that you can listen to video game music, infinitely. Also, Ending's not on there?
This should solve everything
Also, the good thing is that (at least in the ones I do), you know how for example, the music in say,... Call of Duty: Black Ops, or Modern Warfare 2, or whatever, doesn't actually continuously loop? Like, if you've played the game, the music just fades out and starts again? Any of the Call of Duty songs I've uploaded to that site, have been edited to continuously loop. I've also done the same with the Saturn versions of Sonic 3D. I also have made some looped real songs... but I can't upload them there, due to copyright. You will also see looped remixes, and maybe looped non-video game music, that isn't actual commercial music. In otherwords, random songs made up by random people on Youtube
... "maybe", I say.
A lot of the music from the site can be heard here: http://www.youtube.com/BrawlBRSTMs ------ of which I have access to... along with Nintendo3DSChannel, and maybe DSUlt.....er... that other thing.