Music CD sales increased in 2021 for the first time in 17 years

Sales of music CDs increased from 40.16 million units in 2020 to 40.59 million in 2021, according to a yearly report from music data compiler MRC Data and Billboard, marking the first time CD sales have increased year-over-year since 2004.Weston Blasi for MarketWatch:CDs weren’t the only old-fashioned music format that saw gains in 2021 — vinyl album sales volume increased a massive 50.4% year-over-year. Also in 2021, vinyl sales saw their single-largest sales week since 1991, when 2