I have seen that the pre-order 11.1 contains a double layer DVD. What has the pre-order DVD has that do not have the downloadable DVD?
Just a guess, but maybe it has both 32 and 64 bit versions.
Maybe. By the way, is there any promo code to buy the pre-order?
It has both 32 and 64 bit manuals and limited support
Usually has more software (both 32 & 64 bit) than the download dvd