root@ubuntu:/media/disk-1# diff -u fn85_backup1.hex fn85_backup3.hex
--- fn85_backup1.hex	2008-04-05 23:15:20.000000000 +0000
+++ fn85_backup3.hex	2008-04-05 23:15:29.000000000 +0000
@@ -58,6 +58,9 @@
 00000ff0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff 4c  |...............L|
 00001000  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
 *
+00005550  ff ff ff ff ff aa ff ff  ff ff ff ff ff ff ff ff  |................|
+00005560  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
+*
 00010000  25 22 2d 6c 68 35 2d d6  2c 01 00 00 00 02 00 00  |%"-lh5-.,.......|
 00010010  00 00 50 20 01 0c 46 4e  38 35 53 30 31 35 2e 42  |..P ..FN85S015.B|
 00010020  49 4e d3 59 20 00 00 2d  98 8f 80 fd d5 a4 ad ee  |IN.Y ..-........|