HD DVD has a the most compatibility ratio for interactivy fonction example picture in picture, web acces, blu-ray player are not exept for ps3 and again 50% of buyers will use their consol a game center not for movie, left home player and only those of 3rd generation and up will be meaning only 25% of blu-ray user will be able to acces those, HD DVD player are the best option as the standard for everything was availaible from day one and that's the main reason that made Paramount to go HD DVD.