The 4 and 8 GB Zune devices use flash memory and are smaller in size than the 80 GB version, which uses a hard drive.
The 30 GB Zune was not redesigned, although it received a software update that brought its interface in line with the second generation models.
Zune music and devices were follow-on to Microsoft's MSN Music service.
It automatically fixed itself 24 hours later, but an intermediate "fix", for those who did not wish to wait, was to drain the device's battery and then recharge after 12 noon GMT on January 1, 2009.
The first generation and later Zune devices included a number of social features, including the ability to share songs with other Zune users wirelessly.
In November 2015 Microsoft retired the Zune music download and streaming service.
Remaining Zune subscribers would be switched over to Microsoft's Groove Music platform.
The ability to purchase songs from Zune Marketplace on the device while connected to the Internet via Wi-Fi was also introduced.
To help push this feature, Microsoft partnered with Wayport to allow Zune devices to access its network of over 10,000 wireless hotspots, including those at Mc Donald's restaurants.
Songs that had been transferred over wi-fi could then be played three times over three days.
The second-generation Zune 4, 8, and 80 devices, manufactured by Flextronics, introduced the touch-sensitive Zune Pad, which was shaped like a squircle.
At the same time, the Zune 2.0 software was released for Windows PCs.