Great work with researching this file format. :) I'm just guessing here, but maybe this unkown is CRC value or hash value ? Thanks! It's been about 7 years in progress :!: If it is a "check" or "hash" number, would that mean that resources can't be changed in size, otherwise the...

1. Introduction I've mostly deciphered the structure of a pack file format for a game called Test Drive Unlimited. I even wrote a script to unpack and repack these files, and I verified that the game is still playable after modifying the order of resources; check out the script here. There's just o...