I deleted the crappy Roxio software that Dell gave me. I use imgburn for burning cd's and dvd's. http://www.imgburn.com/
To turn avi files into movies I use a program called DVDFlick.
http://www.dvdflick.net/ DVD flick works WITH imgburn so you'll want to get imgburn first.
Should have come as disks with your computer. If you lost the disks you can get nero at http://www.nero.com/enu/nero9-introduction.html and it is pretty good. Infrarecorder is opensource (Free) http://infrarecorder.org/?page_id=5