Our Freeware of the Moment today is the answer to your audio (and video) format conversion prayers.  It seems everyone is doing so much with media files these days, especially with the growing popularity of podcasts and the various audio formats in which those are now available.  A good format conversion utility must perform batch conversion from one of many audio file formats and convert a group of files to another format without quality degradation and do so in a snappy fashion.  GX Transcoder does that quite well and in addition to supporting just about every audio format you might run across it also does some video format conversion as well.  From the program web site:

The GX::Transcoder in it’s standard version is able to en- and decode MP1, MP3, MP2, MPC, OGG Vorbis, PCM up to 7.1 Channel, G.721, G.723, G.726, G.729, ADPCM, GSM, VOX, DSP, VQF and RAW files as well as decoding QuickTime MOV and QT files. There are also AddIns available, which extends the Transcoder to handle the formats AAC, M4A, M4P4, LA, LPAC, WMA, TTA, OptimFrog, WavPack, FLAC, rkAudio, Real Audio, Speex, Bonk Audio and Shorten. There are plans to support even more audio formats. The transcoder also contains a video converter. This converter can transcoder between all installed avi codecs, mpeg with dvd, vcd and svs extension and wma video files.

The GX::Transcoder can transfer the tags ID3v1, ID3v2, APE v1 and v2, Vorbis Comments, FLAC and WMA Tags.

(via Download Squad)