you need not worry about it dude. the RIAA has no reason to go apeshit on you for adding music to a mtb video because if you want the song from the vid you need to have a program that can seperate video from audio, and then you’ve still got the odd noises that the camera speaker picks up (unless you mute them in the editing process) that can get annoying when listening to just the song. that whole process is simply a lot of work that may end up being for a substandard result. it’s a lot easier just to buy the song in question off of itunes or something