And sometimes the console won't play any disk at all.
Before you throw the disk in the trash or the console out the window, here are a couple of things that might get you back to playing games.
If you are using System Menu 3.4, you must immediately put the Twilight Hack to use. Download the Hack Mii installer You can use the mac address to build a custom hackmii installer at Letter Bomb MAKE SURE YOU SELECT YOUR REGION up top If you get the captcha wrong, it will RESET your region. If you do, the installer, well, in my case hung the wii. Errors = Bad News, so try again After that is done, now comes that most important step in this whole process : If a wad fails to install, try to install that wad again.
Turning off or running some other channel or game will have the System Menu delete the savegame again, and you'll have to start over. If the wad still fails, press B to go back to the main menu, select reload ios, reload ios236, then try to install the wad that is giving you trouble again.
Use this program to convert your USB to a Wii USB type, and install the games on the USB!