Wii Optical Disc
The
Wii Optical Disc (RVL-006) is the physical game medium for the
Wii, created by Panasonic. Nintendo extended their proprietary technology to use a full size 12 cm, 4.7/8.54 GB
DVD-based disc, enabling it to have the benefits of the Nintendo GameCube Game Disc, while having the standard capacity of a double-layer
DVD-ROM. Although the Wii can use double-layer discs, all titles were single-layer prior to the release of
Super Smash Bros. Brawl.
[9][10] With the release of
Super Smash Bros. Brawl, Nintendo admitted that some Wii systems may have trouble reading dual-layer discs due to a dirty laser lens.
[10][11] Nintendo repaired systems with dual-layer problems,
[10] and later released a disc cleaning kit for users to purchase.
[12]