fre:ac is a free audio converter and CD ripper with support for various formats and codecs. It will convert between MP3, MP4/M4A, FLAC, Vorbis, Opus, AAC, WAV, WMA and other formats. With fre:ac you easily rip your audio CDs to FLAC or MP3 files for use with your mobile player or convert files that do not play with other audio software. You can even convert whole music libraries retaining the folder and filename structure. The integrated CD ripper supports the http://alternativeto .