Which retail giant's 1998 product innovation became the world's largest music retailer by 2010, fundamentally changing how music was packaged and sold?

The music retail landscape has transformed dramatically over the decades, from physical stores to digital platforms. This trivia question explores how one major retail innovation changed the industry's product packaging and distribution model, creating a revolution in how consumers accessed music before streaming services dominated the market.

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Apple with the iTunes Store
Amazon with MP3 Downloads
Best Buy with the Subscription CD Club
Walmart with Exclusive Artist Partnerships