OpenShiiva is a fast and simple, single pass, video and audio, vob to mp4 converter. Some features:
* All yuv pipeline, saves time and quality.
* High quality scaling
* Correctly handles ntsc framerates
* Syncs video to audio, when both are encoded
* Auto-deinterlacing
* Sample rate convertion
* Subtitles decoding
* Completly free
* Open sourced
