Which of these music products was discontinued within 6 months of launch due to poor sales, despite being backed by a $100 million marketing campaign?

The music industry is known for innovation, but not every product hits the right note. Some highly anticipated music technology products and services have famously flopped despite major marketing campaigns and industry hype. This poll tests your knowledge of notable music product failures that changed how companies approach music product design and marketing. Can you identify which ambitious music device crashed and burned despite its innovative concept?

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Microsoft Zune HD (2009)
Neil Young's Pono Player (2015)
Sony Music Unlimited (2011)
Nokia's 'Comes With Music' service (2008)