DivX是由DivXNetworks所开发的崭新的MPEG-4视频编码/译码器。它提供更高级的编码控制以及二次编码。他还可以播放旧版DivX ;-)以及XviD等编码的MPEG-4电影。

最新释放的DivX Codec 5.2.1，此版本包含了DivX Player 2.5.5，DivX Codec 5.2.1解决了与Window XP SP2的兼容问题，还修复了少许Bug。

Fixed:

The update application to allow update checks when system locale is not supported
The registration application to notify the user when they are already registered

Fixed (Encoder):

A long pause which occurred after opening the codec configuration dialog
A 1-pixel vertical wobble when de-interlacing source
An issue where the codec could forget its ’registered’ or ’6 month trial’ status
A glitch where Pro features were still selectable, but unusable after trial expired
The trial expired message to show every time a trials expires

Fixed (Decoder):

A rare crash that occurred with some types of content
Black distortions which appeared during playback
An issue where blocks were skipped when video contained multiple consecutive B-frames
A stall that occurred with some media players during DivX playback or on exit
An issue causing Explorer to run slowly when showing thumbnails of DivX files
The Japanese Decoder Configuration to no longer show corrupt text 

以往更新(divx 5.2)：

- Localized versions for French, German and Japanese
- Bi-directional coding using an adaptive method
- Fully adaptive multiple consecutive B-frames (自适应动态B帧)
- MPEG-2/H.263 quantization choice (新增了MPEG-2量化模式)
- Built-in bitrate calculator (内置码率计算器)
- Update checking tool
- Automatic update notification for the DivX encoder
- Fast mode, revamped for better performance, compression and quality
- Feedback mode which is now multithreaded, taking advantage of HyperThreaded or dual CPU for better efficiency
- 3 point GMC support in the DivX decoder

Fixed (Encoder):
- A rare issue where rate control sometimes inserted Q=31 frames in video combining low light conditions, high bitrate and specific motion patterns
- Fastest mode to respect the user-specified average bitrate (Old "Fastest" behavior can be obtained by disabling profiles and performing 1-Pass, Quality-based encoding with Q=3)

Fixed (Decoder):
- A crash occurring in some rare cases with clips that have dimensions divisible only by 2 and use YUY2 color mode
- Black screen when decoding old buggy MPEG-4 clips that lack VOL header
- Internal flush operation with "Smooth playback" feature
- Intra inverse quantization (type 1)
- Support for generic MPEG-4 (XVID and 3ivX)
- Data partitioning clip
- Deblocking to no longer cause solid blocks to appear during playback
- DivX decoder to always play DivX video

请根据操作系统选择对应的下载。(6 Month Free Trial)
下载一为For Windows 2K/XP版本，下载二为98/ME版。