MediaCoder is a freeware audio and video batch transcoder for Windows and Wine. It is developed by Stanley Huang, an individual developer, since 2005. In 2009, MediaCoder started to be branded under the name of Broad Intelligence Technologies product. MediaCoder is free of charge and is supported by bundling OpenCandy software recommendation service in its installer. There are no ads in the software GUI, although by default a web page containing ads is loaded on every startup.
MediaCoder uses various open source audio and video codecs, among several proprietary codecs and tools to transcode different audio/video formats and has many extra features. Common uses for the program include compression, file type conversion and extraction of audio from video files. Many formats are supported, including MP3, Vorbis, AAC, Windows Media Audio, RealAudio, WAV, H.264, MPEG-4 Part 2, MPEG-2, AVI, CD, and DVD.
Source: Wikipedia