Do AVCD numbers differ on JP and OS releases?

[tokyoxjapanxfan]

Are the AVCD numbers different or the same on Japanese and Overseas releases? I'm planning on buying a few singles and various items that you can't really find anywhere else, i.e. - surreal, daybreak, etc. and i just want to make sure if theyre japanese or overseas releases.

p.s. - i wont name the source due to fear of someone else buying them before me...sorry~

oh and sorry if this has been asked before..if it has, you can delete it haha