XenonMKV has moved to GitHub and been rewritten. This version is no longer supported. Please visit https://github.com/jbillo/xenonmkv for the newest code.
This .NET Windows application is an ffmpeg2theora GUI that batch converts almost any video files, including mp4 & h264, to OGG / OGV Theora format. Provides a graphical user interface for ffmpeg2theora 0.27. Two pass encoding with Theora 1.1.1.