When Good Discs Go Bad

Burning CDs and DVDs is the easy part.

Knowing your data will be there when you go back to it days, months, or even years later--well, that's a bit harder. Not all discs are created equal, as Fred Byers, information technology specialist at the National Institute of Standards and Technology, can attest.

Byers is part of a team heading up an independent study of DVD media quality. Based on the