MPEG video generally refers to a set of standards and methods for compressing audio and video data. The most important and widely used standards include MPEG-2, an older format currently used by over-the-air digital television providers (digital cable, satellite) and MPEG-4, which includes additional features for digital rights management and support of higher-efficiency standards used by streaming media, HD DVD and Blu-Ray. MPEG-4 supports interactivity and has the ability to crunch massive video files into pieces small enough to send over mobile networks. Within MPEG-4 standards are two very popular formats utilized for broadband video delivery: H.264 and MP4.
VP6 is a proprietary video codec developed by On2 Technologies and is supported by Adobe Flash, Flash Video and JavaFX media files. It was widely adopted prior to the emergence of the H.264 codec, and is used primarily for Internet video and Flash video files. VP6 supports multi-pass encoding, constant or variable data rates, and advanced error recovery; and can be used to encode high resolution video, including 1920x1080 HD video streams.
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