A&M Records, Inc. v. Napster, Inc., 239 F.3d 1004 (9th. Cir., 2001) was a landmark intellectual property case in which the United States Court of Appeals for the Ninth Circuit affirmed the a district court ruling that the defendant, peer-to-peer file sharing service Napster, could be held liable for contributory infringement and vicarious infringement of copyright. This was the first major case to address the application of copyright laws to peer-to-peer file sharing.While A&M Records served as the lead plaintiff, Napster was sued by 18 different record companies, all of which were members of the Recording Industry Association of America (RIAA). Additionally, songwriters Jerry Leiber and Mike Stoller were included on the Circuit Court appeal, representing the interests of "all others similarly situated."
Background
Napster was started in 1999 by 18 year-old Shawn Fanning. Napster provided a platform for users to download compressed digital music files, specifically MP3s, from other users' music libraries. Unlike many peer-to-peer services, however, Napster included a central server that indexed connected...