Warner Bros. Entertainment Inc. v. RDR Books participant Warner Bros.
Warner Bros. Entertainment, Inc. and J. K. Rowling v. RDR Books, 575 F.Supp.2d 513 (SDNY 2008) was a copyright lawsuit brought on 31 October 2007 by the media company Warner Bros. and Harry Potter author J. K. Rowling against RDR Books, an independent publishing company based in Muskegon, Michigan. Lawyers for Rowling and Time Warner argued that RDR's attempt to publish for profit a print facsimile of The Harry Potter Lexicon, a free online guide to the Harry Potter fictional universe, constituted an infringement of their copyright and was not protected by the affirmative defense of fair use. The trial was held from 14–17 April 2008 in the United States District Court for the Southern District of New York. In September 2008, the court ruled in Rowling's favor, and publication of the book was blocked. In 2009, RDR Books released an edited volume, eliminating the problematic long quotes found to be infringing.