Ogg Encoder Decoder 

Vorbis is a new audio format that may well be the end off your mp3 collection. With Ogg Encoder Decoder you can convert MP3 or WAV into Ogg and decompress it back into WAVE easily.
wma decoder wma encoder wma convertor wma mp3 ogg vorbis convertor decoder xfilez ac3

River Past Audio Converter 

Batch convert/extract audio from 3GP, AC3, AIFF/AIFC, APE, AU, AVI, VCD DAT, DivX, DV, FLAC, IVF, M4A, MKA, MKV, MOV, MP3, MP4, MPA, MPC, MPG, OFR, OGG, OGM, RA, RAM, RM, SD2, SND, TTA, DVD VOB, WAV, WMA, WMV, XviD to MP3, WMA, WAV or OGG.
software convert extract rip audio from to 3gp ac3 aiff/aifc ape au avi vcd dat