AC/DC and Kid Rock, two of the year's biggest rock acts, insist their albums only be sold whole, something Apple rarely permits. Furthermore, despite the fact that iTunes is the largest music retailer in the country, neither allows iTunes to sell its albums in the United States. Surprisingly, neither act appears to have suffered for this decision.

According to Nielsen SoundScan, Kid Rock's "Rock N Roll Jesus" was the third-best-selling album of the year as of the beginning of this month. It was sold only as a CD until nearly a year after its release, when Kid Rock granted Rhapsody exclusive online selling rights in the United States. The album has sold 3,000 digital copies to date. And AC/DC's new "Black Ice" album was released exclusively at Wal-Mart, and has become the fourth-best-selling album of the year with 1.6 million copies sold, despite the lack of any digital sales. - But could they have been THE best sellers with digital sales?

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