As you might know by now the protection used in NSMB (New Super Mario Bros) for Wii is a BCA check (Burst Cutting Area). Actually the drive command 'ReadDiscBca' is old but this is first time it has been used in a game to check the disc. In order to avoid cracking each game with this protection the BCA data should be collected from the original game disc and stored somewhere so it can be handled by either modchips or softmods in a proper way.
I've checked the offset range $50-$3FFFF within several game discs (including DVD9) and it seems to be blank (zero). My first thought was that modifying this area and burn on a DVD-R probably breaks crypto and requires trucha bug to load the disc, but to my surprise the game ISO I edited at offset $100 (as seen here) loaded fine on a Wii with original menu 4.2 (using D2CKey, no cios applied).
(by modrobert)
11-26-2009
Posted 16 hours ago
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