has anyone tried the dolphin emulator?

i am wondering if any of you tried it and if other then a wii mote works with it?

cause i want to play Metroid curroption and my copy just dosen't want to read anymore and i checked the disc and there was no scratches or smirs or dirt,whatever.i tried cleaning it twice.didn't work

i even tried my other wii titles to check to see if it's the system but all my other wii titles work.i don't understand tho when i first bought metroid it worked perfectly,now after a few months of not touching it and i want to replay it,it dosen't want to work.