So I was going to format the HDD that I bought a few days ago for my Wii (WD 320GB My Passport Essential) to FAT32 and noticed the "Cluster size" column (using Wii Backup Manager to format). I've heard that 32kb is good for it but I've also saw that 64kb will also work. So which one works better? Is there any advantages one has over another? Want to know before I jump the gun on it.