for me only the EUR version of AC1 worked after i installed the 1.02 update on an internal drive.
If you're not using a SDTV then region is irrelevant well apart from languages of course
Hope this helps
Where can I get 1.02 update for AC1?
I can only find 1.10 with one of these update finders, and it doesn't work.
actually I just double checked after your post my AC 1 doesnt work, tha't was just left over some random guide I had tried a few weeks ago.
More bad news though I'm pretty sure AC1 doesn't work for anyone.