Cabranes, C.J. This appeal requires us to clarify the contours of the "safe harbor" provision of the Digital Millennium Copyright Act (DMCA) that limits the liability of online service providers for copyright infringement that occurs "by reason of the storage at the direction of a user of material that resides on a system or network controlled or operated by or for the service provider." 17 U.S.C. § 512(c).
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The plaintiffs-appellants in these related actions—Viacom International, Inc. ("Viacom"), The Football Association Premier League Ltd. ("Premier League"), and various film studios, television networks, music publishers, and sports leagues (jointly, the "plaintiffs")—appeal from an August 10, 2010 judgment of the United States District Court for the Southern District of New York, which granted summary judgment to defendants-appellees YouTube, Inc., YouTube, LLC, and Google Inc. (jointly, "YouTube" or the "defendants"). The plaintiffs alleged direct and secondary copyright infringement based on the public performance, display, and reproduction of approximately 79,000 audiovisual "clips" that appeared on the YouTube website between 2005 and 2008. They demanded, inter alia, statutory damages pursuant to 17 U.S.C. § 504(c) or, in the alternative, actual damages from the alleged infringement, as well as declaratory and injunctive relief.
In a June 23, 2010 Opinion and Order (the "June 23 Opinion"), the District Court held that the defendants were entitled to DMCA safe harbor protection primarily because they had insufficient notice of the particular infringements in suit. Viacom Int'l, Inc. v. YouTube, Inc., 718 F. Supp. 2d 514, 529 (S.D.N.Y. 2010). In construing the statutory safe harbor, the District Court concluded that the "actual knowledge" or "aware[ness] of facts or circumstances" that would disqualify an online service provider from safe harbor protection under §