Release: 10.04 Lucid Lynx
So it's actually official Ubuntu 10.04 CD sleeve cover style, just designed for DVD boxes, for people who would like to pack this great distro into solid DVD boxes. Somehow I don't like to see any great piece of software packed into small (paper) sleeves, and this one is definitely amazing piece of software. I used official Ubuntu vectors and color palettes for this cover, to make it look more "official".
Note: Source file is actually PSD, just I had to zip it because of large size. So just unpack it and you'll get a PSD file.