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MPEG, MPEG1, MPEG2, MPEG4, MPEG7

MPEG stands for Moving Picture Expert Group in charge of the development of standards for coded representation of digital audio and video. There are several audio/video formats which bear this group's name, such as MPEG1, MPEG2, MPEG4. View MPEG to DVD Burner and AVI to MPEG Converter.

The Moving Picture Experts Group (MPEG) is a working group of ISO/IEC charged with the development of video and audio encoding standards. Since its first meeting in 1988, MPEG has grown to include approximately 350 members from various industries and universities. MPEG's official designation is ISO/IEC JTC1/SC29 WG11.

MPEG (pronounced EM-peg) has standardized the following compression formats and ancillary standards:

MPEG-1: Initial video and audio compression standard. Later used as the standard for Video CD, and includes the popular Layer 3 (MP3) audio compression format.
MPEG-2: Transport, video and audio standards for broadcast-quality television. Used for over-the-air digital television ATSC, DVB and ISDB, digital satellite TV services like DirecTV, digital cable television signals, and (with slight modifications) for DVD video discs.
MPEG-3: Originally designed for HDTV, but abandoned when it was discovered that MPEG-2 was sufficient for HDTV.
MPEG-4: Expands MPEG-1 to support video/audio "objects", 3D content, low bitrate encoding and support for Digital Rights Management. Several new (newer than MPEG-2 Video) higher efficiency video standards are included (an alternative to MPEG-2 Video), notably, Advanced Simple Profile and H.264/MPEG-4 AVC.
MPEG-7: A formal system for describing multimedia content.
MPEG21: MPEG describes this future standard as a multimedia framework.

MPEG1
MPEG1 format is often used in digital cameras and camcorders to capture small, easily transferable motion video clips. It is also the compression format used to create Video CDs. In addition, The well-known MP3 audio format is part of the MPEG1 codec. View DVD to MPEG1 Ripper.

MPEG2
MPEG2 format, a video standard developed by MPEG group, is often used in digital TVs, DVD movies and in SVCDs. It is not a successor for MPEG1, but an addition instead. both of these formats have their own purposes in life. MPEG1 is meant for medium-bandwidth usage and MPEG2 is meant for high-bandwidth/broadband usage. View DVD to SVCD Ripper.

MPEG4
MPEG4, the latest compression method standardized by MPEG group, is used for both streaming and downloadable web content, and is also the video format employed by a growing number of portable video recorders. One of the best-known MPEG4 encoders is DivX which since version 5 has been fully standard-compliant MPEG4 encoder. View DVD to MPEG4 Ripper.

MPEG7
MPEG7 doesn't itself offer any new encoding features and it is not meant for representing audio/video content, unlike its siblings MPEG1, MPEG2 and MPEG4. Instead, it offers metadata information for audio and video files, allowing searching and indexing of audio/video data based on the information about the content instead of searching the actual content bitstream.

MPEG7 is based on XML and therefor is universal and all the existing tools that support XML parsing should be able to read the data as well, provided that they can ignore binary parts of the file.

MPEG7 is not used at the moment, but it is under serious development and standardization process at the moment and hopefully we see first fully featured MPEG-7 tools within few years.


3GP AAC AC3 ASF ASX AUDIO_TS
AVI CDA Codec CSS D-VHS DAT
DivX DRM DTS DV DVD DVD10
DVD18 DVD5 DVD9 DVD-Audio DVD-MP3 FLAC
ID3 ISO M3U M4A M4P MIDI
miniDV miniDVD MOV MP2 MP3 MP3 ID3 Tag
MPEG MPEG1 MPEG2 MPEG4 MPEG7 NTSC
OGG OGG Vorbis PAL QuickTime RA RealVideo
Region codes RM RMVB Streaming SVCD SVHS
VCD VHS VHSRip VIDEO_TS VOB VQF
WAV WMA WMV XSVCD XviD  

 

 
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