Sony's $400 digital noise canceling headphones

The age-old battle between the forces of digital and analog wages on, with Sony's new MDR-NC500D noise canceling headphones claiming to out noise cancel your totally old-fashioned analog pair. We don't really understand the audio alchemy explained in the press release ("the analog audio input signal is converted to a digital signal and sent through a digital equalizer to enhance the mid-range vocals and alleviate the excess bass"?) but if it means we can tune into whatever crappy movie they're playing on the plane while blocking out the roar of the jet engine and maybe even a crying infant or two, then consider our attention gotten when these things start canceling noise in February. For $400, we're expecting nothing less than a miracle.