Knowledgebase

AVI Format:
AVI stands for Audio Video Interleave. This is a container video format that specifies certain structure how the audio and video streams should be stored within the file. AVI itself doesn't specify how it should be encoded (just like the streaming format ASF), so the audio/video can be stored in very various ways. Most commonly used video codecs that use AVI structure are M-JPEG and DivX ;-). AVI contains code called FourCC which tells what codec it is encoded with.

MPEG Format:
MPEG stands for Moving Pictures Expert Group. A working group of ISO/IEC in charge of the development of standards for coded representation of digital audio and video. MPEG is not an acronym for any standard, it is the acronym for the group who develops these standards! The standards include MPEG-1, MPEG-2, and MPEG-4. MPEG-1 is the video format that has had some extremely popular spin-offs and sideproducts, most notably MP3 and VideoCD. MPEG-2 is not a successor for MPEG-1, but an addition instead. MPEG-2 is used in digital TVs, DVD-Videos and in SVCDs.

WMV Format:
WMV stands for Windows Media Video, developed and controlled by Microsoft. WMV is a generic name of Microsoft's video encoding solutions and doesn't necessarily define the technology what it uses -- since version 7 (WMV7) Microsoft has used its own flavour of MPEG-4 video encoding technology.

RM Format:
RM stands for Real Media. Streaming video and audio format developed by RealNetworks.

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