Torrentspy was among a batch of torrent and edonkey sites sued by the MPAA. In its legal response Torrentspy said it is no different from Google. It doesn't store the torrent listing and so cannot be responsible for it or what the user does with it.

This is unsettled legal ground, different from the Supreme Court ruling against Grokser and Streamcast. The MPAA is sure to pursue this, at least as long as Torrentspy can finance or find supporters for its defense.

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In its filing Monday seeking to dismiss the case, Torrentspy argued that the MPAA might as well have sued Google, since Google does what Torrentspy does, only better. Torrentspy is a search engine that helps visitors find torrent files, which are often music or movie files stored in an easily shared file format.

"There is nothing alleged to distinguish defendants' website from that maintained by Google," Torrentspy said in its filing. "Everything alleged about defendants' website is true about Google, and even more so, because Google outperforms the allegations in the complaint," the filing reads.

Torrentspy argues that its site doesn't contain any copyright works or links to copyright works, does not promote copyright infringement and can't be held liable for the actions of visitors once they leave its Web site. The MPAA suit charges the company with secondary copyright infringement., Torrentspy said.