Thanks you for your explanations, i wanted to write something about it but need to check fews others params s flag before and read again your post to make sur.
About region_deny, it s now complete thanks to you (i was thinking about table jump but still far to understand the process so may be later) and fit others infos such as .BIK files you mention recently or the official tools.
I ll delete somes examples of flag (such as Japan & Korea ) since it s not important.
My brain finally understood fews things about it.
About Category and the "2d" related to ps2, i guess there are also about ps1 and psp and will try to localize them and name them.
Again thanks you (and Deroad) for your precious and interesting work.
ADA Love Lace