Quote Originally Posted by Cookie Monster View Post
Sonic CD is not a dreamcast game, it won't run in Chankast.
Use a Sega CD emulator like Kega Fusion or Gens:

http://www.eidolons-inn.net/tiki-index.php?page=Kega
http://gens.consolemul.com/
http://gens32.emubase.de/
http://www.retrobase.net/gensplus/
Oops, sorry. That was a typo, I am using Kega Fusion.