I finally managed to get a 4 TB hard drive. I was able to successfully format the entire drive to a single FAT32 partition with a 32k cluster size. I then transferred the contents of my old hard drive to the new one. It was recognized by USB Loader GX without any problems, but when I attempted to play a Gamecube game it says: "To run GameCube games with DIOS MIOS you need to use a 512 bytes/sector Hard Drive." I also had an issue where EmuNAND games that worked with the previous hard drive no longer worked with the new hard drive. What's weird is that I set up the old drive exactly the same way. I do see an option for 512 in "Fat32 GUI Formatter", but I thought that was cluster size. Does anyone have any ideas?