Steve Ballmer, the new owner of the Los Angeles Clippers, is stepping down from Microsoft's board. Ballmer, who recently resigned as Microsoft's CEO, is the largest individual shareholder of the company. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Many institutions have their archives stored on CDs — but the discs aren't as stable as once thought. There is no average life span for a CD, says preservationist Michele Youket, "because there is no average disc." Sarah Tilotta/NPR hide caption

itoggle caption Sarah Tilotta/NPR