usually free version only have the basic functions and poor services.
If you want to create/burn video DVD from your video files, there is an easy way, you can try RZ DVD Creator, it can create standard video DVD from any videos, it can directly convert and burn any videos to DVD(DVD+R, DVD-R, DVD-RW, DVD+RW, DVD-DL, DVD+DL, etc),
such as avi to DVD, xvid to DVD, etc.
It can burn multi videos to one disc, and can auto fit the size.
Work well on my computer, inexpensive, i like it, following is a step by step guide about Video DVD Creator:
http://www.rzfun.com/convert-avi-to-dvd.html