I need to convert ASF (MPEG-4) files to DVD. The Digital Media Converter seems to have minimal editing capabilities. I have used Windows Movie Maker for editing in the past, but of course it doesn't create anything but WMV files.

Will I lose any quality by using WMM to do the editing, outputting to the highest quality format I can find there, then using Digital Media Converter to create my DVD-ready file? What WMM output would you suggest? I want the highest quality DVD possible. If quality is being lost through WMM, do you have other suggestions for my need?