A video I took from a football game was removed from YouTube due to a copyright claim. Here's the message I received:

"This video is no longer available due to a copyright claim by XOS Technologies, Inc. d/b/a XOS Digital."

What's weird is, it wasn't broadcast material or anything taken from ABC/ESPN. It was simply footage I shot from inside the stadium with my digital camera. It's basically like a home movie. How can that be copyright infringement?