LoG is "digital only" so I've quickly created very simple* DVD insert.
I've used free image hosting so I do not know how long it will last
More info about graphics: JPG/CMYK, adjusted to print on A4 (210cm x 297cm) at 300dpi.
*) It is no longer so simple.
ver.2 with more info, size: ~3.5MB (plus its 3D preview, size: ~0.5MB - thanks go to user Stardog)
ver.3 with logo of GOG, size: ~3.5MB
ver.4 with logo of GOG - different (darker) spine color / spine font / positions of logos, size: ~3.4MB
ver.5 with "small" changes on back cover ^^ size: ~3.4MB
----- DVD label -----
Older versions:ver.2 print+preview with rating and copyrights, size: ~0.7MB