One glance at the images from high definition discs, and regular DVDs don´t look so great. The first Blu-ray and HD-DVD players were expensive and kludgy. But prices are creeping down. And after obsessively watching Mission Impossible III and Superman Returns on a bunch of new players, we found several polished models with great video quality.
To see our picks, click here
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.