Do you want to do some conversion? Want to convert other format file to avi?
If this,I recommend you use a converter winavi.It can do that in very fast way.
http://www.winavi.com/en/video-converter/video-converter.htm
And you need right codec download,divx or xvid,you can find free one for this.
Good luck

Use the motion jpeg codec that says it is for Linux. You have to make sure this is installed when you install zs4. when you do that, windows media player will be able to play avis made with zs4. also, you can drop such an avi into windows movie maker and then save it out as a standard DV_AVI file.

http://www.xilisoft.com/ipod-video-converter.html

http://www.xilisoft.com/video-converter.html

maybe you can check out this video converter or iPod video converter to convert videos...