Originally Posted by JonahUK
There's a file in this which I have never seen before:
PS3GAME.CHK 1KB in size.
Usually, .chk files are corrupt files that have been recovered (on a PC anyway).
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00000000 89 50 4E 47 0D 0A 1A 0A 00 ‰PNG.....
Could be from the original dump?
I think the original up loader ripped this to his PS3 first to test, It may have at first black screened leaving the .chk file and he forgot to remove it when uploading to the interwebs
check this Tombraider post (one of many in search) you may also remember BO2 leaving strange files also when game first run