This is a free tool that can convert music to any of the several popular audio formats.

MediaHuman Audio Converter is a freeware application for MacOS and Windows. If you need to convert your music to WMA, MP3, AAC, WAV, FLAC, OGG, AIFF or Apple Lossless format, this will be very useful. The user interface is simple, intuitive and very easy to use. If you are able to use a computer, you should be able to get going right away. There are some customization settings available and they can be set very easily. There are predefined profiles for such formats as MP3, AAC, WMA and others in the program. That makes it very easy for novices; they can simply use these profiles over and over again and get repeatable results. It is possible to define a profile of your own too.

This tool also gives you the capability of extracting the sound track from movies on DVDs. The most common video formats, such as MP4, AVI, MKV, 3GP, MPEG, WMV and many others are supported for this purpose. All you need to do is to add video file and specify output audio format. This utility will let you pick a specific audio track if the movie has multiple audio tracks in it. It is a batch converter and it is simple to create a batch list. Drag&Drop support is available to make this list creation even easier. Tag information of the source files are preserved when converting the audio tracks. For a free tool, this is quite nice.