MediaPortal users have a new pre-release version of the .net based media center system to play with. Version 1.13.0 has a new default widescreen skin and adds native support for ISO files in Windows 8, 8.1 and Windows 10 which means you can backup your movie collection as ISO files and then access directly from Media Portal.
It also has PIN protection for deleting TV recordings,UI improvements plus lots of other tweaks and fixes
Download links and full release notes on the MediaPortal site.