Debian Live Xfce
http://linux.softpedia.com/get/Linux-Distributions/Debian-Live-Xfce-103376.shtml#download

Debian Live Xfce is an open source Linux-based operating system distributed as part of the Debian Live project, which also contains Live GNOME, KDE and LXDE flavors of the well known Debian GNU/Linux distribution.
Distributed as 32-bit and 64-bit Live DVDs

It is distributed as two Live DVD ISO-hybrid images that can be written to either blank DVD discs or USB flash drives. No persistent session is provided, but they can be used to install the operating system on a local disk drive (directly from the boot prompt or live session).