Verify the "Hash" of your file to ensure it isn't corrupted. The Bottom Line

Most reputable "scene releases" of the WBFS have the UPDATE folder scrubbed (set to zero bytes). You do want the official Nintendo updater. Instead, you want the game revision updated to v1.01 .

1. Decoding the Format: NTSC, WBFS, and UPD

: The "gold standard" mod. It adds over 200 custom tracks, 200cc mode, and enhanced online security. Note: CTGP usually requires an original physical disc to run. Mario Kart Wii Deluxe

Correctly transfer the file to a FAT32-formatted USB drive (splitting files if they exceed 4 GB).