Through the project, library books were being digitized somewhat indiscriminately regardless of copyright status, which led to a number of lawsuits against Google. By the end of 2008, Google had reportedly digitized over seven million books, of which only about one million were works in the public domain. Of the rest, one million were in copyright and in print, and five million were in copyright but out of print. In 2005, a group of authors and publishers brought a major class-action lawsuit against Google for infringement on the copyrighted works. Google argued that it was preserving "orphaned works" – books still under copyright, but whose copyright holders could not be located.