Film, Music Companies Appeal Piracy Ruling

AOL Time Warner Inc., Sony Corp. and other entertainment companies asked a U.S. appeals court to revive copyright infringement claims against Internet file-sharing services Grokster and StreamCast Networks Inc.

In April, U.S. District Judge Stephen Wilson ruled that Grokster and StreamCast, which provide Morpheus file-sharing software, aren’t responsible for what individuals do with it.

The entertainment companies filed court papers with the U.S. 9th Circuit Court of Appeals in San Francisco, asking the court to hold the file-sharing services accountable for infringement.