Start here when Windows Media Player is not working how you expected. Download the latest updates and look up top issues, error messages, and troubleshooting tips. Still have questions? Get help from a discussion group or support professional. http://support.microsoft.com/ph/7763#tab0
(928217) - The Zune software, Zune devices, and Zune Marketplace support and use Windows MediaDigital Rights ... APPLIES TO. ZuneDigitalMediaPlayer; Zune Live; Zune software http://support.microsoft.com/kb/928217
(974423) - Zune 4GB DigitalMediaPlayer; Zune 8GB DigitalMediaPlayer; Zune 16GB DigitalMediaPlayer; Only the Zune HD 16GB or Zune HD 32GB players support HD video. http://support.microsoft.com/kb/974423
(944906) - Music that is transferred from CD or media that is downloaded from the Zune ... APPLIES TO. Zune software; ZuneDigitalMediaPlayer http://support.microsoft.com/kb/944906