You can use AnyDVD Info Window to find details about the region of your Reader. 0 = Region not set.
How to set the region?
Disable AnyDVD, set the region with Windows Device Manager.
@SlySoft: How about adding hardware region setting to AnyDVD?
If region codes match, AnyDVD can extract the CSS keys from the disc. If region codes do not match, most drives refuse to give away the CSS keys. AnyDVD will then perform a "brute force attack" on the protected title set.
It does this very good, but sometimes a title set is too short (FBI Warning? ) for a brute force attack, and AnyDVD cannot find the key 100%. In this case it will "guess" it with a high percentage of accuracy.
In most cases, these "guessed" keys work fine (You can mark the guessed keys as correct in the CSS archive).
Anything remotely interesting (movie, trailers, etc.) should be long enough to retrieve the correct CSS keys with a brute force attack.