Figure 2

address          contents
(decimal)        (hex)
        header
   0              49  49
   2              2A  00
   4              08  00  00  00

        IFD
   8              1B  00
        0th directory entry
   10             FF  00          tag=255
   12             03  00          type=3 (short)
   14             01  00  00  00  length=1
   18             01  00  00  00  value=1

        1rst directory entry
   22             00  01          tag=256
   24             03  00          type=3 (short)
   26             01  00  00  00  length=1
   30             58  02  00  00  value=600
        2nd directory entry
   34             01  01          tag=257
   36             03  00          type=3 (short)
   38             01  00  00  00  length=1
   42             5A  02  00  00  value=602
        .
        .
        .
        offset to next IFD
   334            00  00  00  00
        offset=0 so there are no more IFD's