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
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Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.
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