Hoga-Boga

Windows only: Convert nearly any video format to nearly any other video format with the aptly named Any Video Converter.
The program supports just about every video format known to man, including AVI, DivX, FLV, RM, and VOB. It also comes with output profiles for devices like the iPod and PSP, though you can easily create a custom profile with the audio and video specs of your choosing.
AVC couldn't be much easier to use, and it supports batch conversions--always a nice perk. You'll definitely want to add this utility to your video arsenal (though don't overlook Videora Converter, arguably a better choice for converting videos for mobile devices). Any Video Converter is free for Windows. — Rick Broida
Any Video Converter [Any-DVD-Converter.com]
(Via Lifehacker.)