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Video Formats

  • DV-NTSC and DV-PAL codecs are used to capture video and audio from FireWire devices, such as camcorders, decks, and analog-to-DV converter boxes. The data rate is 3.6 megabytes per second (MB/sec).

  • DVCPRO 50 is similar to the DV codec, but it has higher quality and a larger data rate—7 MB/sec.

  • MPEG-2 is a compression standard used most commonly on commercial DVDs.

  • HDV is an MPEG-2–based high-definition video format that records on a DV cassette tape.

  • MPEG-4 (.mp4) is used for Internet posting, streaming, and wireless devices. It has high quality and low data rates, which allow its file size to stay relatively small.

  • H.264 is based on MPEG-4 and provides the highest quality at the lowest data rate (or smallest file size). It encodes with about twice the efficiency of the MPEG-2 format, allowing better quality at the same data rate. It is very versatile and can be used for Web video as well as for high-definition DVD projects.

  • AVI (.avi) is the standard video and audio file format for Windows-compatible computers.


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