An Internet company wants a federal appeals panel to help disarm lawyers for the music industry, blocking them from using special copyright subpoenas in a campaign to track and sue computer users who download songs online.

Verizon Communications Inc. is challenging the constitutionality of the subpoenas under the 1998 Digital Millennium Copyright Act. A trial judge, John D. Bates, earlier had approved use of the subpoenas, forcing Verizon to turn over names and addresses for at least four Internet subscribers.

Read more: Fox News (http://www.foxnews.com/story/0,2933,97438,00.html).