A bugfixed improvement of the former SSwavetools which let's you

convert raw PCM sound data from game CD's to .wav files for listening

(samplerate, resolution and mono/stereo is not known for those files, info must be provided by you. You will have to try several times untill you find the right ones. Some may be ADPCM encoded, although it got no .ADP extension)

create own sound FX for homebrew Saturn games from .wav source files

(and you can verify them with the Saturn Sound Player)