The Apple-owned computer store made the top 10 US record sales list for the first time, said NPD, which tracks downloads and people’s buying habits.
NPD compared 12 iTunes separate song downloads to one album purchase at an ordinary retail store.
iTunes beat Tower Records, Borders, and Sam Goody, the survey said.
But it was beaten by others, including Wal-Mart and Amazon.com, NPD found.
