Asunder is a graphical Audio CD ripper and encoder for Linux. You can use it to save tracks from an Audio CD as any of WAV, MP3, OGG, FLAC, Opus, WavPack, Musepack, AAC, and Monkey's Audio files.

CDex allows you to take sound files from a physical CD and save them in a variety of digital formats.

Exact Audio Copy is a so called audio grabber for CDs using standard CD and DVD-ROM drives. The main differences

Convert audio files to/from MP3, AAC, Opus, WAV, FLAC, M4A, and all other audio file formats. Supports 50+ audio file formats. Audio Converter optimized for best audio quality. The software

MediaMonkey is software that allows a user to organize a music library. The software is billed by the company behind it as a media organizer "for serious collectors." MediaMonkey