This thread has some really long posts I couldn't be bothered to read, so sorry if this ideas already been brought up. What if, for sources, we have a system similar to how twitch.tv/hitbox.tv has people pick their games for streaming? It would require some database work, likely outsourced to some active community members, but you would start typing the name in, narrowing the choices down as you approach a games name, then select the game. Once you select the game, a second input form next to the first could be used to pick the track(s) used, and then depending on what the tracks are, the youtube source (also community maintained because soundtrack uploaders randomly get shot down all the time) will be automatically linked, say, at the bottom of the OP/Submission page, depending on the format of how this goes down.