As stated by its name, this language derived from Java, and brings a lot of interactive features in BD menus, but can also be used to create game such as with the legendary "Dragon's Lair" which should arrive soon in HD format, giving the ability to consumers to play thanks to the remote control on all standalone players... well not all...
There is indeed a problem as BD Java was only implemented by default in standalone players from October 31st, 2006.
So the first BD players purchased by the first consumers to adopt the BD format will probably not include BD Java, preventing the use of interactive menus and game capabilities which will be more and more included in BD format video contents.
Once more, the first victim of the current war between BD and HD-DVD are consumers, and especially those prone to adopt new technologies, as both competitors do not really care about back-compatibility in this race to be the first one to add an additional key feature...
