The original Wii discs are 4.37 GB, but much of that is "dummy data." WBFS files usually compress this game down to roughly 3.3 GB.

Donkey Kong Country Returns -WBFS- -SF8E01- -NTSC-U- represents the digitized, disc-image version of one of the greatest platforming revivals in gaming history. Originally released for the Nintendo Wii in 2010, this title marked the triumphant return of the franchise after a decade-long hiatus. Developed by Retro Studios, the masterminds behind the Metroid Prime trilogy, the game successfully captured the magic of Rare’s 1990s classics while introducing modern mechanics and a punishing, yet rewarding, level of difficulty.

The SF8E01 ID is more than just a serial number; it denotes the specific regional version of the game. For players in North America, this version provides the native 60Hz output required for the smoothest possible animation. Because Donkey Kong Country Returns relies heavily on "twitch" reflexes, the NTSC-U version is often preferred by speedrunners and hardcore fans for its consistent frame delivery compared to the 50Hz PAL alternatives.