Pureos and Pureoslight are GNU/Linux live CDs based on Debian's testing repository. These are desktop distributions that can be used as live media (CD or USB) or as full-featured operating systems installed on a hard disk. Pureos is a 700 MB live CD with KDE, Iceweasel, Icedove, OpenOffice.org, Songbird, VLC and K3B. Pureoslight is a small 300 MB live CD with Xfce, Iceweasel, Icedove, AbiWord, Gnumeric and Exaile.