The demos were included with the British magazine with the same name. The magazine was a spin-off from OPM UK. All the demos came in slimline cases. Some also came with OPM special issues outside of the UK.
Essential Playstation CD One
The disc was inlucded with special issue 1 in Germany, without insert. The disc colors are slightly different. The German edition is yellow, while the British edition has some orange in it.