Driver.szs !full! Jun 2026

If the game asks for /Race/driver.szs , Riivolution intercepts the call and redirects it to /apps/riivolution/mod/Race/driver.szs on the SD card. This seamless redirection is why custom characters became so popular; players did not need to burn new discs, they simply swapped files on an SD card.

First, a quick lesson in Nintendo’s proprietary file formats. The .szs extension stands for a compression format developed by Nintendo for the Wii and continued on the Wii U and Switch. It is essentially a binary XML archive using Yaz0 compression —a standard for first-party Nintendo titles. driver.szs