Qobuz

Qobuz is a French digital music retailer that offers high-definition downloads of a wide variety of music from labels big and small. They call there offerings “Studio Masters” when the masters are standard definition (like analog tape or standard definition digital). The Qobuz site sells only to residents of France due to licensing restrictions.

Update August 2014: Qobuz has just announced that their service will be available in the United States.