I got all four Discovery HD DVD's. Brazil and China work fine on my ToshibaA-2. Italy and Australia do not. I returned them to Amazon and the replacements did not work either. Then I started reading and found many otherpeople with the same problem which is caused by a coding problem with thesetwo disc's. These two will go back tomorrow. It's a shame Discovery did sucha poor job making sure these disc's were playable especially considering howfew different models of HD DVD Players there are out on the market.