EDIT: sorry about the bach music, my first music put in was copyrighted and was kicked off youtube.
lol, that music sounds soooo inappropriate . . .
anyway, kind of worries me that your 50 second video of a robot got removed so fast . . . my older bot vids used copyright stuff (we weren't so concerned about that 2 years ago)
more recently I've turned to free independent/non-c.r.'ed music, old stuff (like classical), and obscure foreign music not under the RIAA . . .