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.