Paramount did drop BRD for HD DVD (Microsoft made a deal) Thats why you can't get Transformers on BRD. There is a player out there made by LG called the Super Blu that plays both formats. But at $1000 a pop its stupid to buy now. But at least you will be set no matter what format wins.
Not entirely true. Toshiba PAID Paramount (it's widely known, and Paramount even admitted it) $150 million dollars to give HD-DVD the exclusive for Transformers (when it was to be released).
Talk about politics