fre:ac

A free audio converter and CD ripper with support for various popular formats and encoders. It converts freely between MP3, M4A/AAC, FLAC, WMA, Opus, Ogg Vorbis, Speex, Monkey’s Audio (APE), WavPack, WAV and other formats.

With fre:ac you easily rip your audio CDs to MP3 or M4A files for use with your hardware 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 CDDB/GNUdb online CD database. It will automatically query song information and write it to ID3v2 or other title information tags.

https://www.freac.org/

a list i found on tumblr

https://www.tumblr.com/naked-trails/735488706556854272?source=share