详细见： http://www.blu-raydisc-official.org/association/data/bda04.pdf http://dvd.ign.com/articles/524/524681p1.html
In a demo, they showed the animated, high definition menus of a BD-RO
M title and how it was possible to download a new language track for a
film, have it automatically installed and the language option added t
o the movie's language menu.
The drives will also support a content push, so publishers can inform
their customers that some kind of update is available and send it to t
hem,
