Bombono DVD is a DVD authoring program, see http://www.bombono.org.
Now Bombono DVD is ready for Windows, too. The main features are:
[li]Video preview: Timeline and Monitor[/li][li]WYSIWYG Menu Editor[/li][li]Transcoding, if necessary (from AVI/MKV/MOV/MPEG4…)[/li][li]Motion menus[/li][li]Subtitles support[/li][li]You can author to folder, make ISO-image or burn directly to DVD[/li][/ul]
It would be nice if you give some feedback about it.