A ruling unleashed last Friday orders BitTorrent site Torrentspy.com to keep information (logs) of its users that could be used as evidence in a copyright infringement lawsuit filed movie studios and the MPAA.

TorrentSpy was ordered on May 29 by a federal judge in the Central District of California in Los Angeles to create logs detailing users' activities on the site.

The information could allow court identify the activities of the users of the popular BitTorrent seach engine, as well as their IP addresses.

The Motion Picture Association of America, sued TorrentSpy in February 2006 as part of a sweep against file-sharing companies. According to the MPAA, the search engine was sued for allegedly making it easier to download pirated files.

Torrentspy's administrators posted a message in the front page of their web site, saying that they are appealing the judge's order and that they will not create any logs of what its users do throughout the site. The appeal must be filed by June 12.