I tried to obtain it from the Add Features website, but it doesn't seem to work -- I tried two different e-mail addresses from different providers, waited 10 hours and checked my spam folders, but no message arrived.
When I use the "Add features to Windows 8" application, it allows to select the Media Center Pack, but says it will charge me about 10EUR for it. From what I understand, it should be free through January 2013.
Has anyone successfully installed this add-on? Is there another way to obtain it?