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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