Peer-to-peer file sharing service Kazaa has been described in an Australian court as: "An engine of copyright piracy to a degree of magnitude never before seen."

A number of major record labels in Australia are suing Kazaa parent, Sharman Networks and associated parties over alleged music copyright infringements.

Sharman's defence is it has no control over what the Kazaa users do with the files and that it is not responsible for the uploading of the songs.

Representing the prosecution, Tony Bannon claims Sharman Networks was fully aware of how the software was being used and is doing nothing to inhibit the infringement, reports

Bannon has also claimed that the Sharman is hiding the "true ownership" of the company. He claims that the real controller of Sharman is "Kevin Bermeister [Altnet CEO]."

Sharman Networks counsel is to present its opening statement on Tuesday. The trial is expected to last three weeks.