Driver.szs

In the niche but passionate world of Nintendo Wii modding, few filenames evoke as much recognition—and occasional frustration—as . To the average user, it is a string of nonsense characters. But to a modder, a speedrunner, or a custom track creator, driver.szs represents the backbone of one of the most enduring games in Nintendo’s history: Mario Kart Wii .

This small binary file is the heart. Each driver has a record (0x30 or 0x40 bytes per character in most versions). A typical record structure (values are hex offsets): driver.szs

For years, the standard method for running mods was via the system on a homebrew-enabled Wii. Riivolution allows the game to read files from an SD card rather than the disc. A typical Riivolution XML configuration file will contain a path patch pointing to driver.szs . In the niche but passionate world of Nintendo

While various SZS files house tracks ( course.szs ) or UI elements, driver.szs is typically associated with the character models and their associated data. The game does not load every single character model into RAM simultaneously; it loads them dynamically. driver.szs (or similarly named variants used in specific game modes) contains the assets required to render the drivers on the select screen and during the race. This small binary file is the heart