How to convert CDA files to MP3 (or Wav/Wma/Vorbis/Flac) with FreeRIP

To extract audio tracks from an Audio CD to MP3 (or another supported format) use FreeRIP as described here in FreeRIP user manual.

If you copied some .CDA file to your hard drive or to a different media. sorry, you can't convert them to MP3 format. You will need to find the original CD and rip its tracks with FreeRIP and to convert CDA files to MP3.