WMA WMV ASF MP3 Converter converts WMA (Windows Media Audio), WMV (Windows Media Video), and ASF (Advanced Systems Format) files into MP3 and WAV formats, and converts WAV, MP3, WMV, ASF into WMA format. The software also supports batch conversion. The converter encodes MP3, WAV and WMA with different parameters, such as sample frequency, bit rate, and channels. It supports to add or keep ID3 tag when converting WMA, WMV, and ASF to MP3, and MP3, WMV, ASF to WMA. You can change volume when converting as well.