MDY INDUSTRIES, LLC v. BLIZZARD ENTERTAINMENT

Nos. 09-15932, 09-16044.

629 F.3d 928 (2010)

MDY INDUSTRIES, LLC, Plaintiff-counter-defendant-Appellant, v. BLIZZARD ENTERTAINMENT, INC. and Vivendi Games, Inc., Defendants-third-party-plaintiffs-Appellees, v. Michael Donnelly, Third-party-defendant-Appellant. MDY Industries, LLC, Plaintiff-counter-defendant-Appellee, v. Blizzard Entertainment, Inc. and Vivendi Games, Inc., Defendants-third-party-plaintiffs-Appellants, v. Michael Donnelly, Third-party-defendant-Appellee.

United States Court of Appeals, Ninth Circuit.

Filed December 14, 2010.


Attorney(s) appearing for the Case

Lance C. Venable (argued) and Joseph R. Meaney of Venable, Campillo, Logan & Meaney, P.C., for plaintiff-appellant/cross-appellee MDY Industries LLC and plaintiff-appellant/third-party-defendant-appellee Michael Donnelly.

Christian S. Genetski (argued), Shane M. McGee, and Jacob A. Sommer of Sonnenschein Nath & Rosenthal LLP, for defendants-appellees/cross-appellants Blizzard Entertainment, Inc. and Vivendi Games, Inc.

George A. Riley, David R. Eberhart, and David S. Almeling of O'Melveny & Myers LLP, for amicus curiae Business Software Alliance.

Scott E. Bain, Keith Kupferschmid, and Mark Bohannon, for amicus curiae Software & Information Industry Association.

Brian W. Carver of the University of California, Berkeley, School of Information, and Sherwin Siy and Jef Pearlman, for amicus curiae Public Knowledge.

Robert H. Rotstein, Steven J. Metalitz, and J. Matthew Williams of Mitchell Silberberg & Knupp LLP, for amicus curiae Motion Picture Association of America, Inc.

Before: WILLIAM C. CANBY, JR., CONSUELO M. CALLAHAN and SANDRA S. IKUTA, Circuit Judges.


OPINION

CALLAHAN, Circuit Judge:

Blizzard Entertainment, Inc. ("Blizzard") is the creator of World of Warcraft ("WoW"), a popular multiplayer online role-playing game in which players interact in a virtual world while advancing through the game's 70 levels. MDY Industries, LLC and its sole member Michael Donnelly ("Donnelly") (sometimes referred to collectively as "MDY") developed and sold Glider, a software program that automatically plays the early levels...

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