Exton|OS 141117 (Mate) / 150202 (Openbox) / 141122 (Kiosk)
                               http://www.exton.net

Exton|OS is an open source Linux distribution built around the lightweight MATE desktop environment and based on the world’s most popular free operating system, Ubuntu. It also provides users with a light version that features the very fast and lightweight Openbox window manager.
Distributed as 64-bit Live CD/DVDs

The project is distributed as Live CD/DVD ISO-hybrid images with persistence mode, which means that it will allow users to save all the settings and files produced or downloaded during live sessions (only supported on USB flash drives). It comes with its own installer, replacing Ubuntu's one (please take a look at this slideshow for detailed information about the installation process). The Light edition of Exton|OS fits perfectly on a CD disc (detailed instructions on how to burn the image to a CD can be found on the project's homepage).
Two editions are offered, with MATE and Openbox graphical environments