Nintendo Mastering Code

Revision as of 21:44, 9 July 2021 by Pokechu22 (Talk | contribs)

All GameCube, Wii, and Wii U games have a mastering code on the back of the disc. The format of the mastering code has been completely deciphered.

Example of a mastering code that we will use to explain the format in order: 308K0111 RVL-RKGP-0A-0 JPN S0

Character	Meaning
3	The plant the disc was manufactured in. If this character is a number, it was made in Japan. If this character is a letter, it was made in USA. Panasonic manufactured all Nintendo discs, but closed their USA plant on April 30, 2015.[1] Thus, all discs manufactured after that were made in Japan.
08	Year the disc was manufactured. In this case, it was 2008.
K	Month the disc was manufactured. In this case, it was November. "A" would be January, "B" would be February, "C" would be March...
01	Day the disc was manufactured. The full date is therefore November 1st, 2008.
11	Production Run
RVL	Platform. DOL for GameCube, RVL for Wii, and WUP for Wii U.
RKGP	Disc Serial
0	Disc Number. Almost always 0.
A	Layer type. A for single-layer, B for dual-layer.
0	Revision Number
JPN	The plant the disc was manufactured in. If this is a JPN, it was made in Japan. If this is USA, it was made in USA.
S0	Layer type. S0 for single-layer discs, L0 and L1 for dual-layer discs made in Japan, 00 and 20 for dual-layer discs made in USA.