Convert videos with xFast Video Converter
xFast Video Convert is a small and free utility that will let you convert between various video file formats.
The program features a clean interface and supports 3GP, AVI, FLV, MPG, MOV, and MP4 — iPhone, iPod, PSP, Zune, mpg, wmv.
xFast Video Convert won’t let you configure conversion parameters, it tries to be as simple as possible, which means, in the case of video conversions, that it may not be enough for your needs.
However, since it is free, you can give it a try, especially if you just need to convert some movies without changing anything in their size and quality. What I find a greater problem even for those who won’t need a more complex and powerful program, is that it doesn’ support drag and drop, you need to use its browser to select the videos you’d like to convert, although, fortunately, you can select at once more than one video.