Audio and Video Pioneer Ray Dolby Passed Away
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Dolby Digital

1991: New multichannel audio coding system, Dolby AC-3, announced. Now known as Dolby Digital, its first application is as a sound format for films.
1995: First consumer products with Dolby Digital playback compatibility announced.
Batman Returns was the first film to use Dolby Digital




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Audio and Video Pioneer Ray Dolby Passed Away