World Library  
Flag as Inappropriate
Email this Article

Nintendo Optical Disc

Article Id: WHEBN0023606380
Reproduction Date:

Title: Nintendo Optical Disc  
Author: World Heritage Encyclopedia
Language: English
Subject: James Bond 007: Nightfire, God (disambiguation), GD-ROM, Sonic the Hedgehog: Triple Trouble, Tiger Woods PGA Tour 2003, Puyo Puyo! 15th Anniversary, Dragon Quest X
Publisher: World Heritage Encyclopedia

Nintendo Optical Disc

Nintendo Optical Disc
Wii Optical Disc (right).
Media type Read-only optical disc
Encoding Digital
Capacity GameCube: 1.5 GB
Wii: 4.7 GB / 8.54 GB
Wii U: 25 GB
Read mechanism Laser
Developed by Nintendo
Dimensions GCN: 80 mm
Wii/Wii U:120 mm
Usage Nintendo GameCube
Wii U
Extended from Nintendo Gamecube Game Disc
Extended to Wii U Optical Disc

Nintendo optical discs are the optical disc format used to distribute video games released by Nintendo. This includes the Nintendo GameCube Game Disc, Wii Optical Disc, and Wii U Optical Disc. The physical size of a Nintendo GameCube Game Disc is that of a miniDVD, and the Wii and Wii U Optical Disc is the size of a DVD. It was announced that Wii Optical Discs can be used in the Wii U, while the GameCube disc can be used with the original version of the Wii for backward compatibility. A burst cutting area is located at the inner ring of the disc surface.


Nintendo GameCube Game Disc

The Nintendo GameCube Game Disc (DOL-006) is the game medium for the Nintendo GameCube, created by Matsushita (Panasonic),[1] and later extended for use on the Wii through backward compatibility.[2] The GameCube Game Disc is a 1.5 GB,[3] 8 cm miniDVD based technology which reads at a constant angular velocity (CAV). It was chosen by Nintendo to prevent copyright infringement of its games,[4] to reduce cost[5][6] by avoiding licensing fees to the DVD Forum and to reduce loading times. This also limits the consoles from being used as general DVD players.[7][8]

One downside to the GameCube Game Disc is the relatively small storage: some games with large amounts of data had to be placed across two discs. Multi-platform games that fit on PlayStation 2 and Xbox DVD discs occasionally had to have certain features removed to fit on GameCube Game Discs. Full-motion video scenes and audio had to use more compression to fit on a single disc, reducing their quality. Prior to the Nintendo GameCube, Nintendo consoles traditionally used cartridge-based media.

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 has 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]

Wii U Optical Disc

The Wii U Optical Disc (WUP-006) is the physical game medium for the Wii U, created by Panasonic. The Wii U system is backward compatible with Wii Optical Discs, however not backward compatible with Nintendo GameCube game discs.[13] Reportedly to control costs, the Wii U also uses an optical disc format developed and supplied by Panasonic, with a capacity of 25 GB per layer. The optical discs used for the Wii U differ from other optical disc formats in that they have soft, rounded edges.[14]

It is most likely that Wii U optical disc is very similar in physical design as the Blu-ray physical disc specification. Panasonic is also one of the major patent holders in Blu-ray technology. The 25GB per layer would not be possible without having the data closer to the surface of the disc.

Burst cutting area

Main article: Burst cutting area

Each Nintendo optical disc contains a burst cutting area (BCA) mark, a type of barcode that is written to the disc with a YAG laser. The data stored in this BCA mark includes an encrypted table related to the hardware-based copy-protection mechanics, in addition to 64 bytes of un-encrypted user-accessible data.[15]

A BCA mark is visible to the naked eye. It should not be confused with the IFPI mark that is on all optical discs. BCA is described in Annex K of the physical specification, and can be seen between radius 22.3±0.4 mm and 23.5±0.5 mm. There are also six additional evenly spaced small cuts just outside the BCA radius, which are related to the copy-protection used. These small cuts can clearly be seen if the disc is held in front of a strong light source.[15]

See also


External links

  • Description of authentication method
fi:Wii Optical Disc
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.