Quote:
Originally Posted by Klashikari
If you mean the code in the disc
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It's not a code in the disc, it's a code in the backend of the PS3's firmware.
Ok, so here's the rundown.
Every PS3 region has a different target ID. The target ID is a hexadecimal code that determines what kind of system it is (there's also target IDs for non-retail PS3-based systems such as arcade boards)
For a list of regions and target IDs, see
http://www.ps3devwiki.com/wiki/Regions
Before log in to any region of PSN is complete on your PS3, it must authenticate with a "local" server, determinate by the the target ID.
In previous generations, region lock was done by matching a code in the software to one in the consoles firmware, locking to 1 code. PS3's region locking doesn't work like that. It's more accurate to call it "region denying". Instead of setting a single code to lock to, games can deny PS3s with certain target IDs from loading up the software.
And there you have it.