DivX is a brand name of products created by DivX, Inc. (formerly DivXNetworks, Inc.),
including the DivX Codec
which has become popular due to its ability to compress lengthy video segments into small
sizes while maintaining relatively high visual quality. The DivX codec uses lossy MPEG-4 Part 2 compression, also known as MPEG-4
ASP, where quality is balanced against file size for utility. It is one of several codecs
commonly associated with "ripping", whereby audio and video multimedia are transferred to a hard disk and transcoded.
Many newer "DivX Certified" DVD players are able to play DivX encoded movies,
although the Qpel and global motion compensation features
are often omitted to reduce processing requirements. They are also excluded from
the base DivX encoding profiles for compatibility reasons.
To convert from DivX video, you will need to either get the DivX codec from
www.divx.com, or use a compatible decoder
like ffdShow, which is part of CCCP.
Defined by Microsoft, AVI stands for Audio
Video Interleave. It is a special case of the RIFF
(Resource Interchange File Format). AVI is the most common format for audio/video
data on the PC.
AVI is Microsoft's response to Apple's QuickTime
technology. Early AVI files were limited on choice of video and audio codecs,
quality, and resolution. However, with the introduction of DirectShow, AVI became
a very flexible and powerful architecture. Some newer codecs including DivX
and XviD enable AVI files to have similar
or even better quality than DVD.
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