Which music retail technology advancement first allowed consumers to legally purchase and download individual songs for $0.99 each, fundamentally changing the music industry's business model?

The music retail landscape has transformed dramatically with technological advancements. From vinyl to streaming, the way we discover, purchase, and consume music has evolved at an unprecedented pace. This poll tests your knowledge about a pivotal moment in music retail technology that changed how millions access their favorite songs. Do you know which innovation revolutionized the industry and set the stage for today's digital music consumption?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Apple's iTunes Store (2003)
Amazon MP3 Store (2007)
Napster 2.0 paid service (2003)
Microsoft's Zune Marketplace (2006)