Int 2F Fn 150F  - Cd-rom V2.00+ - Get Directory Entry                      [d]

   AX = 150Fh
   CL = drive number (0=A:)
   CH bit 0 = copy flag
       clear if direct copy
       set if copy to structure which removes ISO/High Sierra diffs
   ES:BX -> ASCIZ path name
   SI:DI -> buffer for directory entry (see below)
        minimum 255 bytes for direct copy

Return: CF set on error
       AX = error code
   CF clear if successful
       AX = disk format (0=High Sierra,1=ISO 9660)

Format of directory entry (direct copy):
Offset Size    Description
 00h   BYTE  length of directory entry
 01h   BYTE  length of XAR in Logical Block Numbers
 02h   DWORD LBN of data, Intel (little-endian) format
 06h   DWORD LBN of data, Motorola (big-endian) format
 0Ah   DWORD length of file, Intel format
 0Eh   DWORD length of file, Motorola format
---High Sierra---
 12h  6 BYTEs date and time
 18h   BYTE  bit flags
 19h   BYTE  reserved
---ISO 9660---
 12h  7 BYTEs date and time
 19h   BYTE  bit flags
---both formats---
 1Ah   BYTE  interleave size
 1Bh   BYTE  interleave skip factor
 1Ch   WORD  volume set sequence number, Intel format
 1Eh   WORD  volume set sequence number, Motorola format
 20h   BYTE  length of file name
 21h  N BYTEs file name
   BYTE (optional) padding if filename is odd length
      N BYTEs system data

Format of directory entry (canonicalized):
Offset Size    Description
 00h   BYTE    length of XAR in Logical Block Numbers
 01h   DWORD   Logical Block Number of file start
 05h   WORD    size of disk in logical blocks
 07h   DWORD   file length in bytes
 0Bh  7 BYTEs  date and time
 12h   BYTE    bit flags
 13h   BYTE    interleave size
 14h   BYTE    interleave skip factor
 15h   WORD    volume set sequence number
 17h   BYTE    length of file name
 18h 38 BYTEs  ASCIZ filename
 3Eh   WORD    file version number
 40h   BYTE    number of bytes of system use data
 41h 220 BYTEs system use data