Here is a list of terms commonly used in the post production industry.
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An electronic signal or physical device that blocks or "holds back" a portion of an image, allowing another image to be placed in the matted area. This technique is used during "compositing" of several layers of picture information as in "special effects".
A commonly used term for the MPEG-1 Layer 3 or MPEG-2 Layer 3 audio compression formats. MPEG-1 Layer 3 is for up to 2 channels of audio and MPEG-2 Layer 3 is for up to 5.1 channels of audio. MP3 is not the same as MPEG-3.
Moving Picture Experts Group. It follows from JPEG to add inter-frame compression, the extra compression potentially available through similarities between successive frames of moving pictures. Interest in the television industry lies mainly with MPEG-1 and MPEG-2.
A compression scheme deigned to work at 1.2 Mb/s, the data rate of CD-ROM, so that video could be played from CDs. Its quality is not sufficient for TV broadcast.
A family of inter- and intra-frame compression systems designed to cover a wide range of requirements from "VHS quality" all the way to HDTV. With data rates of between 4 and 100 Mb/s, the family includes the compression system that delivers digital TV to the home and puts video onto DVDs.
MXF is a "container" or "wrapper" format which supports a number of different streams of coded "essence", encoded with any of a variety of codecs, together with a metadata wrapper which describes the material contained within the MXF file. MXF has full timecode and metadata support, and is intended as a platform-agnostic stable standard for future professional video and audio applications.