The average American personal computer has 880 MP3s on its hard drive, according to an April 2007 ComScore study that included home, work, and university locations. Interestingly, Microsoft’s WMV format was the second most popular music file type, as opposed to Apple’s AAC.
Charts:
Popular File Types on U.S. Computers
April 2007
Total U.S. – Home/Work/University Locations
Source: comScore Tech Metrix
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