20 years of CMU - iTunes and the download boom

This week's episode of Setlist is another marking CMU's 20th birthday, the ninth in a series of special editions reviewing the 20 biggest stories CMU has covered over the last two decades. Here we tell the story of the iTunes Store and how it kickstarted the digital music revolution, dominating the market for a number of years and posing all sorts of questions about how the industry sold, marketed and charted its recordings. Setlist is sponsored by 7digital.