Sorry if the answer to this Q is already out there but i can't find it!!

I am a true newbie; I have struggled to download my first commercial movie - took over 24 hours! - but now can't seem to burn it onto a blank DVD. I use an HP Pavilion PC with a built-in DVD burner and Sonic software which come bundled with the PC. I also obviously have Windows Media Player and having read this forum have also downloaded DivX and VLC players.

Help - which software will get the movie onto the DVD most easily, and why is it so difficult ?

The movei is in .avi format if that helps!!

Thanks guys