Sony BMG is facing three lawsuits over its controversial anti-piracy software.
Revealed in late October by Windows expert Mark Russinovich, the software copy protection system hides using virus-like techniques.
One class-action lawsuit has already been filed in California and another is expected in New York.
Digital rights group, the Electronic Frontier Foundation (EFF), is also gathering information from users to see if a case can be brought.
Nice one... that's all I can say. Keep the price of CDs down and most people will buy them.