I believe that 2x is the maximum speed of a blu-ray disc.
On second thought, MS should use blu-ray. It's fitting, plus if all the windows users had to do that, they wouldn't have time to make fun of *nix users. I'm sick of hearing, "OMG MAC USER!!1 YUO DON;T HAVE T3H PROGRAMZZZZZZZZORZ111111"
It's either that or something about one button mice, which aren't even used anymore.