Following its mid-2007 rollout of Digital Release cards, which first appeared in Starbucks to offer digital downloads of albums from individual artists, Apple has expanded the Digital Release program to include themed, 15- and 30-song iTunes compilations, and started to sell the cards in Best Buy locations. Branded under the iTunes Essentials name, the cards are available for collections such as ?Classic Rock Hits,? ?R&B Hits,??
