Electronics

Even the most expensive digital TV can't convey the rich multichannel sound you'll find on most Blu-ray and DVD movies and high-definition television programs. There are two basic ways to upgrade the audio: Choose a home-theater-in-a-box system or build your own surround-sound system from separate components. (Last updated May 2, 2011.)

In an era when online scammers are targeting your credit-card information, Social Security number, and other personal data, it's just as important not to be lax with your paper documents. That's where a paper shredder can help. Find out which models we tested made the cut.

Meaningful differences in speed between desktops and laptops have largely disappeared. But each design has its own advantages and trade-offs. We give you the essential information to find the computer that's right for you.

Whether you want to listen to music or movies without disturbing others, get the best out of your MP3 player, or drown out background noise while exercising, there's a set of headphones for you.

Whether you want a slim LCD or plasma TV, a 3D-capable set, or a front projector that can give you a cinema-like experience at home, you'll find the help you need here. (Last updated June 2011.)