January 6, 2010 – Nielsen SoundScan, the entertainment industry’s data information system that tracks point-of-purchase sales of recorded music product, Nielsen BDS, the music industry’s leading music performance monitoring service, and Nielsen RingScan, which tracks mobile ringtone purchases, have announced their 2009 U.S. year-end sales and performance monitoring data for the 52-week period January 5, 2009 through January 3, 2010.
