Emerging from a thread on Kraft Parmesan cheese, the issue of Protected Designation of Origin (PDO) by the EU came up. According to Wikipedia, PDO means that "the entire product must be traditionally and entirely manufactured (prepared, processed AND produced) within the specific region and thus acquire unique properties". Such a qualification can happen when a product has not yet become a 'generic' term - so cheddar on its own was deemed too generic whereas feta was not and then given a PDO (meaning that cheese made outside of Greece can not be called feta within the EU).
I'm curious how Chowhounds feel about PDO for foods and beverages. I currently live in Jerusalem - and the notion that the feta can "only" be made in Greece appears ridiculous to me as it's a cheese that is present in a variety of forms in the Middle East, and that it's just a commercial regulation that has nothing to do with the quality of the cheese.
Anyways, I am interested to hear other opinions of PDO and additional positive/negative aspects of the restriction.