MediaCoder is a free universal audio/video batch transcoder, putting together lots of excellent audio/video codecs and tools from the open source community into an all-in-one solution, capable of transcoding among different audio/video formats with many extra features.

The features highlight of the program includes:

* Directly transcode among MANY audio and video compression formats and mux in various container formats, on the fly, in batches
* No need to install any media player or codecs package
* No need to register any components into your system
* Native Win32 program built on Win32 SDK, efficient and small, no dependencies on any middle layers (e.g. .NET, JAVA etc. )

The typical applications of the program include:

* Improving compression / reducing file size
* Converting from lossless/high-bitrate audio to low-bitrate audio to play with portable DAP
* Converting to device (mobile phone, PDA, MP4 player, PSP, VCD/DVD player)
* Extracting audio tracks from video clips
* Ripping CD/VCD/DVD

The supported inputs in the program are:

* MP3, Ogg Vorbis, AAC, AAC+/Parametric Stereo, AMR NB/WB, MusePack, WMA, RealAudio
* FLAC, WavPack, Monkey's Audio (APE, APL), OptimFrog, AAC Lossless, WMA Lossless, WAV
* H.264, Xvid, DivX 4/5, MPEG 1/2/4, H.263, 3ivx, RealVideo, Windows Media Video 7/8/9, DV
* AVI, MPEG/VOB, Matroska, MP4, RealMedia, ASF/WMV, Quicktime MOV, OGM
* CD, VCD, DVD, CUE Sheets

The supported outputs of the program are:

* MP3, Ogg Vorbis, AAC, AAC+/Parametric Stereo, AMR NB/WB, MusePack, WMA
* FLAC, WavPack, Monkey's Audio (APE, APL), OptimFrog, WMA Lossless, WAV
* H.264, Xvid, DivX 4/5, MPEG 1/2/4, H.263, Flash Video, etc.
* AVI, MPEG/VOB, Matroska, MP4, PMP (PSP Media Player Format)

The requirements of the program are as follows:

* Windows 98/98SE/2K/NT/ME/XP/2003
* At least 15MB of free hard drive space
* A suggested 64MB of RAM and Intel CPU