Dvdflick is a freeware ,and can convert some xvid movie files to dvd ,but have errors on my computer, you can try it by yourself, maybe ok on your computer, I don't know other good program, now i am using an inexpensive program RZ DVD Creator, works well, you can have a try, it can directly convert any formats movies files to video dvd and burn to any dvd disc(DVD+R, DVD-R, DVD-RW, DVD+RW, DVD-R DL, DVD+R DL, etc), such as convert xvid to dvd with good quality, etc, the burned video DVD can be played well on DVD player, you can yahoo or google search and download RZ DVD Creator, easy to use, good quality, you may have a try.