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This disc was discovered through an image (TODO: insert image) showing this disc, as well as the [[Movie-CH Install Disc]] and the [[Wii Backup Disc]]. This disc was also seen in the GameDealDaily image, but is no longer available on their site. In late 2018, this disc was obtained and dumped, revealing that it installs updates through the Wii Menu and contains a checker program listing titles which the disc should install and verifying that they are installed.

The '''DiscUpdate Disc''' is a disc used at authorized Nintendo repair centres. It installs an update on a Wii console via the [[Wii System Menu]]'s update mechanism, and verifies that the update has been installed using a special program ("boot-steve"). This disc was obtained and dumped by NWPlayer123 in late 2018.

 

While the disc does not have the autoboot value set in its ID, since it uses an update partition to install titles rather than an installer executable (like the [[Movie-Ch Install Disc]] and [[Wii Startup Disc]]), it can still function in the Wii Menu's recovery mode.

 

Later versions of the [[Wii System Menu]] block this disc by its ID, similarly to how the Wii Startup Disc ID is blocked. While the disc wouldn't have any purpose if inserted a second time after its first use, it's possible that it was blocked to avoid confusion or to encourage the disposal of the disc.

 

The only known version of this disc installs Wii Menu v3.0U; it's unknown if other version and region variants exist, although this is implied by the version and region being mentioned on the disc's label.

 

The disc was initially seen in an image posted online in the late 2000s showing it alongside the [[Movie-Ch Install Disc]] and [[Wii Backup Disc]], then was later discovered to be for sale on [[GameDealDaily]]'s website.{{Template:WiiNavbox}}