Universal attacks MySpace.

Universal issued legal proceedings against MySpace 10 days ago, prompting a digital battle between entertainment giants News Corp, the owner of the networking site, and the major label group. Universal accuses MySpace of breaching copyright, with News Corp now required to respond.

What is Universal's problem with MySpace exactly?

It's that near-exhausted argument that they it is in breach of copyright by allowing users to upload files - both audio and video - to music pages on the site. Universal is concerned that MySpace generates traffic - and therefore advertising revenues - from people spreading copyright material freely on the service.

Is there a specific piece of stolen material which has sparked this?

Well, Universal's document states, "No intellectual property is safe in the MySpace world of infringement - not even songs from the unreleased album Kingdom Come by the superstar artist Jay-Z."

Is there any mention that Jay-Z also happens to be president of Universal label Def Jam?

After trailing through the legal document with a fine tooth comb, we found no such reference, m'lud.