Source: NPD Group

The NPD Group on Tuesday issued what at first appears to be a pair of contradictory facts:

• Apple (AAPL) now controls the largest share of the music business, its iTunes Store accounting for 25% of unit sales in the first half of 2009, up from 14% in 2007.
• Compact discs are still the most popular format for paid music, accounting for 65% of unit sales.

How can this be? The trick is that Apple controls the lion's share -- 69% -- of paid downloads, whereas CD sales are spread out among many players, chief among them Wal-Mart (WMT), Best Buy (BBY), Amazon (AMZN) and Target (TGT).

To see better how this works, let's put the data into pie charts: More