The region for DVD use can be changed 5 times maximum in XP. After that
you're stuck.
Open device manager, click the plus next to DVD/CD rom drives. Right
click the DVD and select properties. One tab will indicate DVD region.
There you will see the same information.
The purpose of region code is copy protection which evidently worked in
this case. The region code for the U.S is region 1. Commercial movie
DVDs sold within a region only have that region code on them. They cannot
be played on a DVD player setup with another region code.
DVDshrink can't read the DVD data due to the region code mismatch.
Therefore, cannot duplicate the data region free or the original region.
There are hacks around the DVD region codes. But, the author meant this
for inhouse copy of purchased media that already is playable for the user,
not reproduction theft. Which is highly suspect in this case.