What’s that sound Wile E. Coyote makes as he’s plummeting towards the ground?

From Variety:

[O]verall music [CD] sales during the Christmas shopping season were down an astounding 21% from last year. From the week of Thanksgiving up through the day before Christmas Eve, 83.9 million albums were sold, a decrease of 21.38 million from 2006’s 105.28 million.

OK, now look at those numbers and tell me with a straight face that the DVD business isn’t going to go through the exact same thing in a couple of years, and that HD-DVD and Blu-Ray aren’t already the walking dead.