The original Xbox hard drive uses a file system called FATX (FAT32 derivative). Standard Windows NTFS drives choke on FATX. However, the Hdd Ready archive solves this by being platform-agnostic.
This format is the gold standard for playing games from a modded Xbox’s hard drive because it saves space, eliminates disc swapping, and works with all dashboard loaders (Evox, UnleashX, XBMC). Xbox Hdd Ready Archive