Data show shipments of titles in the DVD Audio and Super Audio CD formats. While these formats provide higher-quality audio than CDs or MP3s they are losing market share rapidly.

Geographic reference: United States
Year: 2003 and 2009
Market size: 1,700,000 and 200,000 respectively
Source: Joseph Plambeck, “In Mobile Age, Sound Quality Steps Back,” The New York Times, May 9, 2010 available online here.
Original source: Recording Industry Association of America