yeah there are some bad ones on youtube.
http://youtube.com/watch?v=4ZIM3cYar3c this is one of the worst I've seen. Found it when I was trying to find a chris cunningham video.
http://youtube.com/watch?v=TS-ojK6yGSw and this one, god to people have to put every stupid college film class project they make onto youtube?
Other bad ones when you're searching for a video by a band, and you can't find it but someone has synched it with their favorite
anime'. awwwwww how cute