BeOS and Haiku mount cdda like they're "data" CD with only WAV files, one per audio track, at root folder, that all.
The CDDA tracks are in PCM format, which is very easy to wrap in a WAV file, which we do on the fly.
You can even "play" the track that way, directly, even. MediaPlayer or whatever player you will hand to these files will see them like regular wav files, that all.
The only différence is the speed access time: CD drive are slow compared to modern disks medium.
I didn't knew that MediaConverter crash when encoding out mp3.
But, you can rip (aka copy the track files from cd on your disk, which will give you wav files.
Then, no need to rip them again, just find a tool to convert wav into mp3 that don't crash.