Azoff's clout and the sheer scale of his request will likely carry some weight. You're probably going to notice if those songs disappear, after all. With that said, the exec hasn't had success fighting YouTube in the past. He created Global Music Rights precisely because he was frustrated when challenging YouTube on copyright disputes -- it would ask him to show exact instances where it was missing licenses and infringing artists' rights, which was supposedly near-impossible. And historically, large-scale copyright battles with YouTube tend to be both drawn out and messy. Azoff may have a better chance at extracting cash than he did before, but you won't want to bet on a speedy resolution.

[Image credit: Thomas Hawk, Flickr]