This program supports most video extensions, and it will convert them to make them compatible with your different devices: iPhone, Xbox, PS3 or any other player or smartphone that only reads one type of extension.
ChrisPC Free Video Converter is very easy-to-use. You just have to add a video file (or files) to the program interface, go to the drop-down menu to select the format or device that you want to use to play the video, and select a specific profile for the file. Then, you just have to click on 'Convert videos' and it will start to convert your files.
Another good feature of this app is that it allows you to visualize the files before you convert them to make sure that you have the video that you want. In a few seconds, your new videos will appear in the output folder.
Compatible with the following formats: AVI, MP4, MKV, WMV, MPG, 3GP, 3G2, SWF, FLV, AVCHD, WEBM, MOV, DV, RM, QT, TS, MTS, MP3, AAC, WMA, WAV and OGG.