River Past Audio Converter converts and extracts video audio. It can convert from Dolby Digital. It has complete control over codecs, channels and quality adjustments. It is really fast and reliable.

It supports the conversion of the following formats: AC3 to MP3-WAV-WMA, AIF to MP3-WAV-WMA, AIFF to MP3-WAV-WMA, AIFC to MP3-WAV, AU to MP3-WAV-WMA, MP3 to MP3-WAV-WMA, MPA to MP3-WAV-WMA, OGG to MP3-WAV-WMA, RA to MP3-WAV-WMA, SND to MP3-WAV-WMA, WAV to MP3-WAV-WMA, WMA to MP3-WAV-WMA, 3GPP to MP3-WAV-WMA, AVI to MP3-WAV-WMA, DAT to MP3-WAV-WMA, DivX to MP3-WAV-WMA, DV to MP3-WAV-WMA, IVF to MP3-WAV-WMA, MOV to MP3-WAV-WMA, MP4 to MP3-WAV-WMA, MPG to MP3-WAV-WMA, MPEG-1 to MP3-WAV-WMA, MPEG-2 to MP3-WAV-WMA, RM to MP3-WAV-WMA, VOB to MP3-WAV-WMA, WMV to MP3-WAV-WMA, XVID to MP3-WAV-WMA, VCD to MP3-WAV-WMA.

Limitations of the trial version

-Conversion limited to 2 seconds.