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Collecting records is an activity linked in most folks’ minds with combing through dusty stacks in cramped storefronts or at garage sales. But there’s an alternative way to check out vintage vinyl, and I don’t mean record fairs (though those are cool, too). I’m talking about YouTube.

We all know what distortion sounds like. We've heard it in heavy metal tunes, cheap iPod docks and the crummy speakers at Taco Bell drive-thrus. And we've all read distortion specs on things like receivers and subwoofers. But other than a general understanding that distortion isn't something we want in home audio gear, most people really don't know what it is.

[This sweepstakes is now closed.]

In some respects, the Optoma HD20 is an exceptional value, providing a razor-sharp 1080p image for just about as little money as any projector I know of. It's overall detail and color are excellent via HDMI, and it offers extensive controls, surprisingly advanced features, and a well-organized user interface. However, the lack of lens shift makes placement difficult without invoking the keystone control that can degrade the detail a lot. And even if you solve that problem, the shadow detail is poor, which causes dark scenes have large areas of solid darkness rather than subtle low-level details. Finally, at the largest image size I could manage in our studio given the lack of lens shift, the black level was quite high, which means the black of space was dark gray and letterbox bars were obvious. For better performance in this critical area, a larger image is a must.