WavPack Download
WavPack allows you to losslessly compress (and restore) both 16 and 24-bit audio files in the .WAV format. Unlike "lossy" compression schemes (like MP3) that discard information, WavPack converts the audio data into a more compact form so that the restored files are digitally identical to the original source. It's somewhat like the file compression portion of WinZIP except that because WinZIP is designed for other types of files, it works very poorly on audio data.