QUOTE(Havok @ May 30 2006, 03:43 AM)

Secuirity sectors are still different for different regions even though the game is region free.
It's be interesting to know if the rest of the ISO content is the same and the SS the only difference.
If the true 'content' of the ISO also contains differences (localised language strings, etc.), then this would imply the SS contains a hash of the disk contents.
If the true 'content' is identical, this would imply the SS has a relationship with the
console's regional settings (held in Flash?).
My guess would be the SS contains a hash of the disk contents. This be useful for verification during manufacture (although also potentially useful at runtime, I don't see the console recalculating the disk contents on insertion - the time this'd take would upset game launch time. Maybe thisd come if people started patching the game content files

).