fre:ac (pronounced “freak”) is a feature-rich audio tool set featuring audio encoding and conversion, CD ripper, playlist and metadata editor. The program supports most popular audio formats such as MP3, M4A, WMA, OGG and FLAC, as well as support for a long list of additional converters such as Quicktime and Shorten. For CDs, the program supports reliable conversion (CD Paranoia), online databases (CDDB/GNUdb) and CDText, automatically writing song information metadata. The program is optimized for multi-core systems, making conversions as fast as possible.
Cross-platform (Mac, Linux, FreeBSD). Available in many world languages. Alternatively, fre:ac Portable automatically adjusts paths.