With StaxRip you can easily convert your DVD's, DVB or DV captures or almost any other source format. As a open source application StaxRip is completely free.
Supported Formats
Video formats: DivX, XviD, x264, MPEG-2, MPEG-4
Audio formats: MP3, AC3, MP2/MPA, AAC, DTS, WAV
Container formats: AVI, MP4, MPG, MKV, DIVX
Features
* No spyware, adware or any other form of malware.
* Open Source, Freeware.
* No registry bloat, settings are saved in files within the application's directory or within the user directory. No lost settings after a fresh windows installation.
* No awkward setup/installer, no system changes, system bloat and trash.
* Easy to use and highly versatile and customizable.
* Reasonable default values for filters, codecs etc.
* Rich help system including, online help (assistant), context sensitive help and forum support.
* Rich and convenient cutting facilities e.g. to remove ads.
* Batch processing (jobs).
* Rich feature set to manage, integrate and download required third party application transparently instead of awkward or dangerous codec packs or application packs.
* AviSynth powered to achieve excelent video quality and support of almost any source format.
* Rapid development using the latest and greatest technology .NET Framework 2.0
* Reportet bugs get fixed quickly, often a new version is available on the same day!
* Many feature requests get incorporated very quickly.
Download at their homepage here
Found this on the DCEMU news page