For the last 2 years all music record companies have been investing and looking for different solutions in order to avoid piracy and music sharing at the same time. After the fiasco of CD's that couldn't be played on PCs I believe Sony Music implemented something similar but improved not so long ago. This article details that BMG could be making a move this year, implementing technology from SunnComm who have been in the business for sometime now and recently signed a deal with Microsoft.