Chosen Solution
A few days ago, I put Mario Party 8 in my wii and loaded it. It booted like normal, but there was no music. I pressed start, it checked the save data and not even a second after that it gave me the error, “Unable to read the game disc. Please turn off the Wii and eject the disc. Refer to the Wii Operations Manual for troubleshooting.” There is a minor scratch on the disc in about the area in the picture
EDIT: I just got the disc resurfaced and it will let me get to mode select if i’m lucky. they did a bad job though there were still scratches on the disc.
Try a different disc if you can. If that doesn’t work, adjust the alignment of the motor. This is pretty difficult, but if you want to tackle it, Nintendo Wii DVD Drive Replacement But instead of replacing the drive, just find the screws that hold the motor, and adjust them until it works. If it never works, then you will probably have to replace the drive.
