<P> One downside to the GameCube Game Disc is the relatively small amount of storage they provide . As a result, some games with large amounts of data needed to be placed across two discs, such as Resident Evil 4 and Enter the Matrix . Multi-platform games that fit on PlayStation 2 and Xbox DVD discs occasionally saw the removal of certain features in order to fit on GameCube Game Discs . Full - motion video scenes and audio are more compressed to fit on a single disc, reducing their quality . Prior to the GameCube, Nintendo consoles traditionally used cartridge - based media . </P> <P> 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 . 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 . Nintendo repaired systems with dual - layer problems, and later released a disc cleaning kit for users to purchase . </P> <P> The Wii U Optical Disc (WUP - 006) is the physical game medium for the Wii U, with a capacity of 25 GB . The Wii U system is backward compatible with Wii Optical Discs, but not backward compatible with Nintendo GameCube game discs . The optical discs used for the Wii U differ in appearance from most other optical discs in that they have soft, rounded edges . </P> <P> The format was developed and supplied by Panasonic, which is one of the major patent holders in Blu - ray technology . It is not clear whether the Wii U Optical Disc is similar in physical design to the Blu - ray physical disc specification . Former Nintendo president Satoru Iwata stated, "Wii U does not have DVD or Blu - ray playback capabilities . The reason for that is that we feel that enough people already have devices that are capable of playing DVDs and Blu - ray, such that it didn't warrant the cost involved to build that functionality into the Wii U console because of the patents related to those technologies", as, like with the GameCube and Wii optical discs, was chosen by Nintendo to prevent copyright infringement of its games, to reduce cost by avoiding licensing fees to the Blu - ray Disc Association (BDA) and to reduce loading times . This also prevents the console from being used as general Blu - ray players . </P>

What kind of discs are wii u games
find me the text answering this question