I don’t know if anyone has heard  Mobile Video Converter  before,Personaly ,i think it is  helpful..now i sharing with u guys
 It's a software which can easily convert most popular video formats such as AVI, MPG, MOV,QT, WMV, ASF,DAT, VOB, RMVB, RM, MP4, MKV, OGM and so on into portable video device formats including Sony PSP, Apple iPod, iPhone, MS Zune, PDA, Pocket PC, Archos, Creative Zen, MP4 Player with high speed and quality, is an excellent video and audio formats converter.

well,as far as i know ,Movkit Mobile Video Converter has seven key features,more details u all can click :
http://www.softwarewikipedia.com/index.php/Movkit_Mobile_Video_Converter

hope u all like it!