River Past Audio Converter is River Past's award winning audio
converter and extractor. Convert from almost any audio format to WAV,
MP3, WMA, or audio-only AVI. We support a variety of input formats,
including the standard WAV, MP3, WMA, AIFF, RealAudio, and the
not-so-standard OGG, AIFF, and Unix Audio. Extract audio from the
standard AVI, ASF, WMV, MPEG-1 and MPEG-2, RealMedia, and the
not-so-standard QuickTime MOV and MPEG-4. If the file format exists,
we probably support it.