Black Lab Linux Xfce
http://linux.softpedia.com/get/Linux-Distributions/Black-Lab-Linux-Xfce-103671.shtml#download


Black Lab Linux Xfce is an official edition of the Black Lab Linux operating system, built around the lightweight and responsive Xfce graphical desktop environment. The system is a derivative of the world’s most popular free operating system, Ubuntu, and has been tailored specifically for low-end machines and computers with old or semi-old hardware components.

Distributed as a 64-bit Live DVD

Despite the fact that it uses a lightweight desktop environment, the Xfce edition of Black Lab Linux is distributed as a Live DVD ISO image that contains software packages optimized only for 64-bit (x86_64) computers.