Video Convertor Software
There are many different formats for video and so software that can convert formats is very useful. Here are some that are worth trying:
ANY-VIDEO-CONVERTOR
With this free software you can clip any segments and optionally merge and sort them to make a creative movie. And even more, Any Video Converter Freeware can crop frame size to remove any unwanted area in the frame. You can also burn videos to DVD-R/RW, DVD+R/RW disc . It also adds the MP4 Faststart option to play back mp4 video in the stream way.
PRISM
Prism converts avi, mpg, vob, asf, wmv, mp4
and all video formats that have a DirectShow based codec. If you can play the video file using Windows Media Player, you can convert it using Prism