A new nano-optical device can focus laser light tighter than traditional optics, which could lead to higher-density data storage.
As noted in “Why Apple is Winning in Media Downloads,” there’s a huge gulf between HD or even DVD quality video, and what can be effectively delivered over the web. Here’s a visual comparison of how much larger HD and DVD programming is, compared to what Apple is selling in the iTMS. Daniel Eran, RoughlyDrafted Magazine