Great, because right now I use HD WD 500gig with 2 partitions primary on it.
1 partition - 50gig primary format under FAT32 -- For USB loader UniiLoader, Ultimated 7,4, MplayerCE .5, Greebox, wad, music, video and roms and I put some AVI, DIVX and MP3
2 partition - 450gig primary format WBFS...