"wiiGM" typically refers to Wii Game Manager , a desktop application (like Wii Backup Manager) used to scrub, convert, and transfer WBFS files to USB drives. In some circles, it’s a shorthand for "Wii Game Metadata." For the end user, seeing wiiGM in a filename implies the file has been verified for checksum errors and is pre-configured for USB Loader GX or WiiFlow.
Older Wiis are region-locked. A PAL disc (SD2E41) will refuse to boot on an NTSC Wii unless: Just Dance 2 -WBFS- -SD2E41- -NTSC- -wiiGM-
Option A –
. It is a file format that optimizes game data by removing "junk data" or padding used on physical discs, making the file smaller and compatible with USB loaders. : This is the unique for the North American (NTSC-U) version of Just Dance 2 : Game-specific code ( Just Dance 2 : Region (North America/NTSC) : Publisher code (Ubisoft) "wiiGM" typically refers to Wii Game Manager ,