This little open source application for Windows allows you to author a video DVD from nearly any video file. See the Lifehacker link below for a step-by-step guide on using the application.
Supported file container formats are, amongst others, AVI, MPG, MOV, WMV, ASF, FLV, Matroska and MP4. Supported codecs are amongst others, MPEG-1\2\4 (XVid, DivX, etc.), Windows Media Audio\Video. MP3, OGG Vorbis, H264, and On2 VP5\6. For a full list of supported container, audio and video formats, see http://ffmpeg.mplayerhq.hu/ffmpeg-doc.html#SEC20
- Link (via Lifehacker)