Better yet there is a website that does it all for you on the fly for free. Check it out here: Media Convert - free and on line - convert and split sound, ringtones, images, docs - MP3 WMV 3GP AMR FLV SWF AMV MOV WMA AVI MPG MP4 DivX MPEG4 iPOD PSP OGG WMA AAC MP4 MPC MMF QCP KAR MIDI REALAUDIO FLAC JPG PSD DOC PDF RTF TXT ODG ODP ODS ODT SXW

We described some of their features in a news post here Media-Convert: Convert Audio, Video, and Documents For Your BlackBerry | BerryReview