help cdvdinfo doesnt work!

[sach16]

when i run it, error message:

access violation address ay 0000001. Read of address FFFFFFFFF

any other way i can check if region free? thanks

sach

[beave]

try IFO edit if you want to find out if your dvd is region free ( i think, haven't used it in a while).

[Canteen]

Yea, I get the same error message. What's IFO edit?
Or does some one else know how to get by this?