LAS VEGAS -- The DVD format got another boost last month at the National Association of Recording Merchandisers Show here with the announcement that DVD audio players and software would be available by the end of the year. s. For example, while CDs have a frequency range of 0 to 20,000 hertz, DVD's range is 0 to 100,000 hertz, with a dynamic range of 140 decibels, compared with CD's 96 decibels. "DVD audio promises to sound better than anything you or your customers have heard on a CD. ...

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