well i think yall should quit complaining. there is a reason for these copyright laws, and youtube has no choice, but to try to enforce them. vimeo and all the other video sites will do the same thing if they get as popular as youtube. i just recommend being a little smarter than to put real mainstream songs in your videos. you also have to look at it this way, the other path youtube could have taken would be to remove the video completely. wouldn't you rather them at least leave it on there in mute than remove it completely?