how i shot .avi to dvd-r?

Hm. Someone ate my link: http://www.surpluscomputers.com/store/main.aspx?p=SearchBody&search=nero

you need a program called WinAVI to convert and Nero to burn. it works like magic.

I can also vouch for AVI2DVD. Very simple front end to some free utilities, no hassles. (I've only had a couple of issues with weird sources before, although nothing I didn't expect to be honest.)