Which company launched the first widely successful digital music store that fundamentally transformed how consumers legally purchased and owned music online?

The music industry has undergone one of the most dramatic digital transformations of any retail sector. From physical albums to downloads to streaming, the way we consume music has evolved rapidly. This poll tests your knowledge about a pivotal moment in music retail history that changed how consumers access and purchase music forever. Do you know which company first successfully revolutionized the digital music marketplace?

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

Apple with iTunes Store (2003)
Napster's legitimate relaunch (2003)
Amazon MP3 Store (2007)
Microsoft's Zune Marketplace (2006)