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DCI's primary purpose is to develop a specificiation that describes a common, open standard for Digital Cinema that can be adopted by all Distributors , Studios and Vendor s. Because of the relationship of DCI to many of Hollywood 's key studios, conformance to DCI's specifications is considered a requirement by any Software Developer or equipment manufacturer targeting the digital cinema market. SPECIFICATION On July 20 2005 , DCI released its first version of the final overall system requirements and specifications for digital cinema and made it available for download . Based on many SMPTE standards, such as JPEG 2000 -compressed image and "Broadcast wave" PCM / WAV sound, it explains the route to create an entire Digital Cinema Package (DCP) from a raw collection of files known as the Digital Cinema Distribution Master (DCDM), as well as the specifics of its content protection, Encryption , and Forensic Marking . The specification also establishes standards for the decoder requirements and the presentation environment itself, such as ambient light levels, Pixel Aspect and shape, image Luminance , White Point Chromaticity , and those Tolerances in which it should be kept. Universal Pictures used their film '' Serenity '' as the first DCP to be delivered shown to an audience at a remote theater, although it was not distributed this way to the public. '' Inside Man '' was their first DCP release, and was transmitted to 20 theatres in the United States along with two Trailers . Audio/video capability overview
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