no don't burn it .
did you check the system(video+audio ) box as tmpg will default to ES(video only)
if you have dvdsanta as above open it and click on video files (.avi,wmv ) to DVD Then add media in window that opens select your media file then in lower corner select ntsc or pal if uk pal then medium resolution and select full screen or 16:9 .
In advanced settings select 4.7gb dvd
then ok on return to other screen click create dvd.
on completion it normally asks if you want to open your burner and burn the disc