In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. CDs are increasingly being replaced by other forms of digital storage and distribution, with the result that audio CD sales rates in the U.S. have dropped about 50% from their peak; however, they remain one of the primary distribution methods for the music industry. In 2014, revenues from digital music services matched those from physical format sales for the first time. COUNT 8
QSN1 In what year were digital and physical music sales the same? ANS1 2014 QSN2 How many CDs had been distrubuted worldwide by 2007? ANS2 200 billion QSN3 In 2004 how many CDs had been sold around the world? ANS3 2004 QSN4 What percent decrease did audio CD sales experience? ANS4 50% QSN5 What has caused a decrease in CD sales? ANS5 other forms of digital storage and distribution QSN6 In 2004 how many CDs had been sold around the world? ANS6 30 billion QSN7 How many CDs had been distrubuted around the world by 2007? ANS7 200 billion QSN8 What has caused a decrease in CD sales? ANS8 other forms of digital storage