Tomorrow drummer Lars Ulrich, accompanied by the band's attorney, Howard King, will drop by Napster's San Mateo, Calif., offices and drop off documents proving, the band claims, massive copyright infringement on behalf of Napster users.

According to a press release, the documents, which include more than 60,000 pages, show more than 1.4 million copyright violations of 95 different Metallica songs, all of which took place between Friday and Sunday. The list also includes 335,435 Napster screen names, all of which house an average of five Metallica MP3s on their hard drives.

To put the information together, the band hired an outside firm, NetPD, which details each copyright infringement, along with the user involved.

Napster's Web site makes it clear that it will block users who dabble in copyright infringements, but it requires the copyright holders to provide the names.

On April 13, Metallica filed a copyright infringement and racketeering suit in federal court in Los Angeles against the MP3-sharing-software company Napster, Yale University, the University of Southern California, and Indiana University. Since then, Yale and IU have banned the use of the software from their servers, while USC announced that it will restrict the use of Napster "for only demonstrably legal purposes from designated university personal computers and under university supervision." Some 300 universities across the United States have reportedly banned the software from their servers.

Metallica is not the only artist to express unhappiness with Napster, which allows users to freely share any MP3 files, regardless of copyright issues. Rapper Dr. Dre has also filed a multi-million-dollar suit against the company.

Not all artists, however, are anti-Napster. The Offspring recently spoke out in support of the company, while Limp Bizkit announced that it would embark upon a completely free tour sponsored by the software maker. "We believe that the Internet and Napster should not be ignored by the music industry as tools to promote awareness for bands and [to] market music," frontman Fred Durst said at a press conference. "We could care less about the older generation's need to keep doing business as usual. We care more about what our fans want, and our fans want music on the Internet."