Nielsen SoundScan has reported a dramatic growth in the sales of digital music downloads for 2006. Through the first 49 weeks of 2006, sales of individually downloaded digital tracks are up more than 67% over the same period in 2005, accounting for more than 525 mln digital downloads; already 173 mln more than 2005’s annual total. Historically digital downloads have dramatically increased year-over-year. In 2005, digital track sales reached 353 mln; 150% higher than total track sales for all of 2004. In 2004, digital download track sales broke the 100 mln mark with more than 140 mln digital tracks sold. In 2006 to date, 54 tracks have sold more than 500,000 units as opposed to only 22 tracks in all of 2005. None reached that sales mark in 2004. Digitally downloaded albums have increased more than 100% with 29.7 mln YTD in 2006 versus 14.5 mln in the same time period in 2005. In 2006 to date, 11 albums have sold more than 100,000 units digitally comparing to only 3 for the entire year in 2005 and none in 2004.