Microsoft Zune held up as example in how not to do product planning - OnMSFT.com
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Zune - Wikipedia
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From Walkman to Your Phone: 40 Years of Portable Music | The Saturday Evening Post
The Real Reason Zune Failed Spectacularly - History-Computer
Microsoft kills off Zune range and even Apple's iPod may be dead soon... | Daily Mail Online
Technology Flashback: The Microsoft Zune MP3 Player (2006) - iReTron Blog
Portable media player - Wikiwand
Remembering Microsoft's Zune: 4 Product-Planning Lessons for Entrepreneurs | Entrepreneur
The Real Reason Zune Failed Spectacularly - History-Computer
Zune licensing for DRM protected music ends soon, but you can upgrade to MP3 - OnMSFT.com
Gone Too Zune: Remembering Microsoft's Underdog MP3 Player | Digital Trends
History of Mp3 Players | Mental Itch
Microsoft's Zune is making a comeback thanks to Guardians of the Galaxy Vol. 3
Zune hardware was a mistake, admits former Microsoft exec. : r/technology
Microsoft Finally Puts the Zune Out of Its Misery - SPIN
In the Age of MP3 Players, the Microsoft Zune Was (Kinda) a Thing
Things That Lasted Longer Than The Confederacy - On November 14th, 2006 Microsoft launched the Zune as its answer to the iPod. After several models it was ultimately deemed a commercial failure
R.I.P. The Microsoft Zune is officially dead - Consequence
Amazon.com: Zune Home AV Pack v2 (Discontinued by Manufacturer) : Electronics
Zune HD 32 GB Video MP3 Player (Platinum) | Headphone Reviews and Discussion - Head-Fi.org