Currently the drive is in HFS+ with 4 partitions being HFS+. I want to convert one to FAT32. When i go to disk utility, if I make one partition smaller and create a new one, FAT32 isn't a option. If I simply pick one of my HFS+ partitions and hit erase, under format, the MS DOS (FAT) option goes away. My only option seems to be if I decide to erase the WHOLE HD, I can format it to FAT 32? Is that right? Is that the only way?