Michael Jackson First Artist to Sell Over 1 Million Downloads in a Single Week

[One more record for the road][link]. Legitimate question: How much longer will Billboard data even be a useful measurement?

[link]: http://www.wired.com/epicenter/2009/07/michael-jackson-first-to-sell-over-1-million-downloads-in-a-single-week/ “Michael Jackson First Artist to Sell Over 1 Million Downloads in a Single Week | Epicenter | Wired.com”