CVF Region: BootSect
The BootSect is one-sector long (512 bytes). It is located 31 sectors
after the end of the MDFAT; its location can be obtained from the
wMdResSects field (offset 27H) of the MdBpbRec.
It is identical to a standard Boot Sector, as it would exist for a
physical drive of the (estimated) disk size except that it does NOT
necessarily contain any executable boot code. It exists as part of the
DoubleSpace "simulation" of a real disk.
One Boot Sector field bears mention: the bFatCnt (offset 10H) contains
02H, even though the CVF does not maintain a duplicate of the FAT. When
programs request a sector which would be part of the second FAT,
DoubleSpace returns a sector from the "first" (only) FAT.
See Also: CVF Layout