I've been using an external hard drive for playing games on Nintendont through the vWii. The issue is I can't multipurpose the drive for both Nintendont and storing games from Nusspli. I can only have one hard drive attached at a time, so would the best thing to do be to move the Wii/Gamecube ROMs to the SD card and re-purpose the external hard drive for playing Wii U games? Would there be a performance drop on Nintendont playing games off of the SD compared to an external hard drive? I'm just trying to figure out the best way to have both.