I heard on the radio today that Dire Strait’s Brothers in Arms was the first CD to outsell its vinyl counterpart. I wonder if any digital albums have outsold their CD counterparts yet? That may be harder to determine, since digital music (with some exceptions) is available in single song chunks too. A report on music sales summarized at ReadWriteWeb indicates that overall digital music sales is still behind physical sales, but digital will overtake physical music sales in 2012.
What about e-books outselling their print counterpart? Apparently Dan Brown’s The Lost Symbol sold more Kindle copies than hard copies; but I wonder if that held up once the paperback version was available?