Are you having trouble to put videos to iPhone or sync videos from iTunes to iPhone? 4Videosoft iPhone Video Converter is a perfect solution for that. It can convert videos to iPhone compatible format such as MP4, M4V for playback on iPhone, iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5. The default presets are the optimized settings for iPhone with best video quality and sound effect.
If you are a MAC user, please refer to iPhone Video Converter for Mac