Pai daca are windows ca sistem de operare merge WMV direct cu windows media player.
Aici poti sa convertesti online din AVI in WMV http://video.online-convert.com/convert-to-wmv
Sau
http://www.zamzar.com/
Sau
http://www.convertfiles.com/convert/video/AVI-to-WMV.html
Bafta!