Quick Media Converter is a Windows utility that will let you convert practically any audio or video file from one format to another. MPEG to H.264? No problem. WAV to OGG? Sure, why not.
Now let’s get something out of the way here. Quick Media Converter is basically just a fancy front end for the open source, command line FFmpeg media encoder. But it’s a really useful front end. The utility offers you two interfaces: an easy mode and an expert mode. In easy mode, you can choose from a number of predefiined formats. So just select the media files you want to convert, and click the Audio, Quicktime, WMV, DiVX, Xbox, PS3, or Wii button to create a file optimized for your system of choice.
In Expert mode, you have much more control over the code choices and settings. For example, in easy mode, there’s no way to convert a FLAC file to OGG. But you can do that in expert mode.