Major record labels have asked a US federal court to order Verizon to reveal the details of one of its ISP customers who is suspected of offering hundreds of MP3 music files for download. The filing was made on Tuesday in the Federal District Court of Columbia by the RIAA, which acts on behalf of the labels.

The filing came after Verizon refused to comply with an order issued by the same court last June. The order sought limited information about a “suspicious” computer connected to the Verizon network.

The company refused to reveal the name of its subscriber because the order did not involve material stored on the Verizon servers by users. It involved material residing on a P2P node, i.e. the user’s own hard drive.

Verizon said that it is concerned about both the privacy of its subscribers and the “copyrights of the music industry”, but it has also a “legitimate concern” that the RIAA complies with the “proper legal process”, according to media reports.

At the same time, a US government official has revealed that the Department of Justice is prepared to begin prosecuting individual file-swappers.

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