A program chain (PGC) is a linear sequence of programs, or 8-bit pointers to groups of cells. This allows for
seamless branching
Seamless branching is a mechanism used on DVDs and Blu-ray Discs to allow the player to jump to a different scene after finishing one. The most common purpose is to have several versions of a scene within one film, without having to store the ent ...
in
DVD
The DVD (common abbreviation for Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any kin ...
playback, such as would be required for multi-angle scenes. The first PGC in a DVD title is called the ''entry'' PGC. A PGC with no programs is called a ''dummy'' PGC. Each PGC has a color palette of 16 colors, recorded in
YCbCr format.
References
DVD
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