I am not sure how it handles cd32 games.
The few I've tried have worked well, although you don't get CDAudio.
It also has to be said that Whdload isn't perfect and some games will either crash or refuse to work all together.
It also has to be said that WHDLoad enables some games to work on your Amiga that wouldn't otherwise work well, as it patches/fixes CPU/kickstart and other issues..
Well worth the registration IMHO..
desiv