Is there a way to change where Phoenix Project is looking for rom folders? I do not like idea of copying all my stuff into different folders so one application will work. I am also looking for "Mah Boi" additional small aplication for cdiemu.
Last I heard 4DO is still the best 3DO emulator, but I haven't looked in a while. I don't know of any working CDi emulators.
MAME emulates CDi games, mostly - there are glitches (when you load a disc image, you will need to reset the emulated machine), and there is currently no way to select what controller you're using (so it will assume you are always using a trackball), but I was able to make Tetris work on the cdimono rom set.