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DCP - Digital Cinema Package, is a distribution package, a collection of files containing media and data. Each DCP has a Composition Play List, or a CPL which is basically the operation file of the DCP, holding information about the movie and how it performs within projection system or editing software.
DCP's media uses MXF containers and JPEG2000 picture codec, it allows the creators to use high depth compression of 12 bit per pixel and XYZ colorspace which has a wide range of colors and grades. It makes a precise picture. Other features used are many framerates (24, 25, 30, 48 and 60), frame sizes (2K, 4K), Stereoscopic picture (3D) aspect ratios (Flat, Scope). JPEG2000 also enables up to 250 Mbps bitrate.
Some DCP's are encrypted and locked. To play them you will need a key that is called KDM (Key Delivery Messages). The KDM controls when and where a movie will open. It is referring to a unique certificate located within a digital projector or a software. The encryption is a 128 bit which is considered unbreakable.
To apply our localization services, we use a distributer KDM and load the DCP to an editing software. Within the editing software we add and replace elements in the film, such as adding logos, audio tracks and subtitles. To complete our work, we can re-package the DCP, creating a new DCP master or we can export only the changes and additions that we have made. This method is called Supplemental DCP (or just SUP). It is much lighter than the original DCP master and it needs it in order play. The cinemas receive the original DCP master, our SUP and if needed, a KDM and ingest all of the to the DCP server. To screen the localized film, they will choose the CPL from the SUP.

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