it wants to format it to WFS (not a format that can be read/accessed by anything else than a Wii)
There's no table partition, the ENTIRE drive is a single block of encrypted data. there's no partition at all.
ALL consoles (Wii, PS3, PS2, Xbox, etc.) expects HDD to be FAT32.
FAT32 is used universally across palteforms and consoles.
just use FAT32 for Wii too.
WBFS is old, deprecated and corruptible.
FAT32 is not only compatible with emuNAND, it is also with ALL homebrew : The Homebrew channel, emulators, gamecube backup launchers, media players, computers, games, etc.
you want to store a 9GB video bluray dump? buy a dedicated HDD for your consoles, and one for your computer. don't mix them. 99% problem solved.
Users are making things overcomplicated.