Can sb tell me what exactly are the twilight extras in the dvd?I mean it has deleted scenes, director's commentary...what else?

Well in the Disc 1 the special features include:

audio commentary with
catherine hardwicke,
robert pattinson
and kristen stewart
on/off

muse performing
"supermassive black hole"

"decode" music video
by paramore

"leave all the rest"
music video by linkin park

extended scenes
(with director's introduction)

And in Disc 2 the special features include:

deleated scenes
(with director's introduction)

the adventure
begins: the journey
from page to screen

the comic-con
phenomenon

theatrical campaign

They are all very cool and in Disc 1 the option that says audio commentary with... is about looking at the other options with their commentaries! Is awesome!
And this option can be seen at the movie also, while looking at it, the three of them are talking and commenting about the movie, is fantastic!!!
Hope you buy it soon!!! And Enjoy it!!!

Love Twilight!!!
Team Cullen!!! And James,Laurent and Victoria!!!

well if you get the 2 disk, on disk one it has extended scenes, audio commentary, and music videos and on disk two there is a 7 part documentary, deleted scenes and the comic-con phenonmenon invterview with the cast