Universal Music Group, Aftermath Records and Interscope Records appealed against a ruling in the Ninth Circuit Court of Appeals in December that said they should pay 50% of royalties on digital sales rather than 12-20%.

It dates back to a suit brought by FBT Production, which originally signed the rapper in 1995.

In September, the Ninth Circuit held that a previous district court ruling "had improperly denied FBT's motion for summary judgment". This meant that the downloads were classed as ...