XMedia Recode is an audio/video converter. It converts most audio/video formats such as 3GP, DVD, AVI, MP4, WMV, ASF, etc. so that they can be played on popular mobiles devices/PDAs such as iPod, iPhone, Samsung, SonyEricsson, Zune, PSP, Blackberry, LG, etc. It is for windows. You can download the ZIP package and extract to a folder and install.