DCI specification with its great emphasis on digital movie content security prescribes “Digital Cinema Package” (DCP) as its data file format which includes encryption for digital movie content. The DCP file can be distributed via satellite or they could be delivered physically to theaters on a hard disc drive (HDD), with cryptography key to be delivered separately to theaters, where DCP file can later on decrypted with cryptographic key by cinema server, and screened by the projector. To further expand the security measure on the DCP file, the file is embedded with an electronic watermark or otherwise known as forensic mark in preventing illegal recording of projected content.In addition to this, security measures such as an anti-tamper function are also incorporated in the projection system as an extra measure in preventing DCP files from being stolen, removing all the possibilities of pirated production.
Based on DCI specification, Sony has unveiled industry’s first DCI compliant digital cinema projection system comprising of a projector capable of projecting an ultra high resolution 4K video (8.85 million pixels, more than four times that of full HD) SRX-R320 as well as cinema server designed to store and transfer video contents to the projector.
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