Int 13 Fn 4B01  - Bootable Cd-rom - Get Status                             [d]

   AX = 4B01h
   DL = drive number
   DS:SI -> empty specification packet (see #0211)

Return: CF clear if successful
   CF set on error
   AX = return codes
   DS:SI specification packet filled

Note:  same as AX=4B00h, but does not terminate emulation

See Also: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch,AH=4Dh