0x00 Disc root volume
    0x01 Direct access buffer root volume
    0x02 Indirect access buffer root volume
    0x03 System disc volume
    0x04 Direct access buffer volume (DBA)
    0x05 Indirect access buffer volume
    0x06 Public disc volume
    0x07 SRAM volume
    0x08 ROM volume
    0x09 Flash volume
    0x0A Serial Flash Volume