From SiliconValley.com:

A mandolin player who recorded with The Grateful Dead is suing YouTube for posting his videos illegally.

David Grisman, nicknamed "Dawg" by former Dead guitarist and singer Jerry Garcia, filed the copyright infringement lawsuit May 10 in federal court in San Francisco.

Grisman and business partner Craig Miller, who run the San Rafael-based studio Acoustic Disc, said the case is about helping independent musicians whose music is distributed without their authorization by YouTube's owner Google, Inc.

They say they deserve an unspecified amount of money from the hits - and advertising revenue - that that Google gets from their clips.