struct _MMSUBSECTION_NODE// Size=0x28
{
    union _unnamed_664 u;// Offset=0x0 Size=0x4
    unsigned long StartingSector;// Offset=0x4 Size=0x4
    unsigned long NumberOfFullSectors;// Offset=0x8 Size=0x4
    union _unnamed_726 u1;// Offset=0x10 Size=0x8
    struct _MMSUBSECTION_NODE * LeftChild;// Offset=0x18 Size=0x8
    struct _MMSUBSECTION_NODE * RightChild;// Offset=0x20 Size=0x8
};