1)   Codec Pack (Advanced) 6.0.3
The Cole2k Media advanced codec package features a collection of codecs and filters for encoding/decoding a large variety of video/audio formats
DivX, 3ivx, XviD, ffdshow, MP4, AVC, h.264, AC3, DTS, AAC,

 2)   AudioCommander 4.0
Powerful batch conversion for CD, WAV, MP3, WMA, OGG, MP2, AIFF, AAC, AC3, AMR, 3GP, AU, VOX, RAW, PCM, GSM, ADPCM, A-LAW, u-LAW, g72x, DSP, MPC, MP+, MOV, AVI audio, and more with highly configurable command-line support or easy-to-use interface.
mp3, wma, wav, ogg, mp2, flac, aac, ac3, aiff, au,

 3)   Codec Pack - Standard 6.0.5
The Cole2k Media standard codec package features a collection of codecs and filters for encoding/decoding
Audio, Video, Codecs, Codec, Codec Pack, DivX, 3ivx, XviD, ffdshow, MP4,

 4)   Audio Fish 1.2
Easily encode your WAV files to MP3, AAC/M4A, Windows Media Audio (Lossy & Lossless), Ogg-Vorbis, MusePack (MPC), FLAC, Monkey's Audio (APE), WavPack, and TrueAudio (TTA) formats using an intuitive drag & drop system.
Encode, Decode, MP3, iPod, iTunes, Apple, AAC, M4A, FLAC, APE,

 5)   MP3-tag 5.9
mp3Tag is a music tag editor for MP3, WMA, MPC,OGG, APE, MP4 files with great features, like an automated search for lyrics/pictures, Amazon/FreeDB support. The program comes with batch processing options for working with large music file collections
mp3 organizer, mp3 tag editor, tag editor, ipod m4a organizer, m4a tag editor, musepack mpc tag editor, music organizer, id3 tag editor, mp3 manager, mp3 tagger,

 6)   AudioAlchemy MP3 Edition 3.0
Fast, easy-to-use, and highly configurable conversion tool that provides settings for speed, quality, bitrate, frequency, and much more. Convert from CD, WAV, MP3, WMA, OGG, AIFF, AU, FLAC, AAC, AC3, ADPCM, ALAC, MP4, M4A, and more to MP3 in a snap.
mp3, wma, wav, ogg, convert, converter, conversion, decode, encode, aiff,