New:

• Full support for single CPU, HyperThreaded (HT), dual CPU (SMP) and dual core processors. Encoding performance is improved up to 180% for HT CPUs and up to 250% for Dual Core + HT.
• Mutlithreading is enabled in the DivX decoder for DirectShow when the option to 'Reduce CPU spikes using one frame delay' is enabled and post-processing is applied.
• Optimizations have been added for processors supporting SSE2 extensions.
• A new "High Performance" encoding mode has been added.
• A new "1-Pass Target Quantizer" mode has been added.
• The codec now includes a Lanczos resize filter for very sharp resizing.
• The Feedback Window now displays VBV level and has variable axis for PSNR plots.
• The Feedback Window now contains controls for changing VBV bitrate, performance mode and psychovisual enhancement in real time during encoding.
• DivX High Definition profile now permits average bitrates of up to 6 Mbps.
• MPEG quantization has been improved.
• Brightness, contrast, and saturation controls are now respected by the DivX decoder for DirectShow.
• The DivX decoder for DirectShow now respects the option to "Output YUV 4:2:0 when supported."
• It is now possible to exclude the Settings Manager by using RegEdit to add the process name to the list under: HKLM\Software\DivXNetworks\DivX\SMExclusions.

• The performance of "Extreme Quality" and "Insane Quality" modes has been improved.
• "Fastest" mode now achieves better compression and produces video compliant with certified encoding profiles.
• Quarter-pixel motion estimation has been enhanced for performance and is now available in all modes from "Balanced" through "Insane quality" when "Unconstrained profile" is selected.
• Item descriptions in the encoder GUI have been improved for all languages.
• Generic MPEG-4 playback support has been improved.

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