In Los Angeles and San Diego, Is Discovery of an Anonymous Internet Poster’s Identity for Potential Libel Protected by California’s Constitution?

In an action for copyright infringement of music recordings, an anonymous online poster asserted, through an online music site, the defendant routinely uploaded music to its servers, where it was stored and sold to third party users, and remained despite artists or music labels complaining of infringement. The defendant subpoenaed the online music site for the name of the anonymous …