DivX is a package that includes all the DivX codec, player, utilities, and documentation that you need to play DivX files.

DivX codec is based on the MPEG-4 compression standard. This codec can reduce an MPEG-2 video (DVD format) to ten percent of its original size.

DivX is a digital video compression technology based on the ISO MPEG-4 standard.

http://download.divx.com/divx/DivX503Bundle.exe

Changes in Current Version:

• Support for interlaced video in the decoder
  
• New de-ringing post-processing algorithm
  
• Video Buffer Verifier (VBV) model (one and two pass encoding)
  
• Nth Pass™ encoding
  
• Support for DivX Certified Profiles
  
• DivX Decoder verification logo
  
• New internal application programming interface (API)
  
• The motion estimation algorithm is better optimized for High Definition resolutions (up to 1080p, or 1920 x 1080 pixel resolution)
  
• The pre-processing performance is now improved with with the IYUY 4:2:0 color space
  
• Removed MP4creator and the MPEG-4 file output option due to some compliance issues
  
• Removed the Intelligent IVTC functionality due to persistent problems caused by lack of variable frame rate file format support
  
• Changed the block skipping threshold for high quantizers, which improves visual quality when high quantizers are used
  
• Fixed a bunch of little cosmetic bugs in the DirectShow decoder properties page
  
• Fixed a bug where the last P frame before an I frame was not displayed when Smooth Playback was selected
  
• Fixed a practically unnoticeable YUV->RGB16 color conversion rounding bug
  
• Fixed a bug that was the cause of some of VirtualDub’s “Cannot Start Video Compression” errors
  
• Fixed a few issues with DivX 3.11 compatibility
  
• Modified the decoder to deal with a bug in the old OpenDivX encoder that set the scalability bit incorrectly in certain cases
  
• Fixed a problem where some rounding operations were not done toward zero, as is required by section 7.4 of the spec
  
• Fixed a bug where some frames would be corrupted by an out-of-range error
  
• Fixed several rounding issues related to MMX/SSE/SSE2 optimizations
  
• Fixed an MMX bug in RGB32 color conversion