This is a German CD by CDV Software GmbH from 1993, Included on this Disk is the first episode of Doom:Knee Deep in the Dead, along with demos of 50(!) other games including Aggression, Oh No! More Lemmings! and other DOS games of the early to mid 1990's, This file came from archive.org and I do NOT own this CD nor do I take credit for it either.