Musicians Eric Clapton, right, and Michael Buble, left, CDs on display at Best Buy in Mountain View, Calif., Friday, May 6, 2011. Warner Music Group Corp., the world’s third-largest recording com …

Musicians Eric Clapton, right, and Michael Buble, left, CDs on display at Best Buy in Mountain View, Calif., Friday, May 6, 2011. Warner Music Group Corp., the world’s third-largest recording company with such artists as Eric Clapton, Michael Buble and Paramore, is being sold for about $1.3 billion as a global decline in CD sales weighs down the industry. (AP Photo/Paul Sakuma)