Codemasters CD Games Pack (ZX Spectrum) - games on CD for a Spectrum! :O
I just stumbled over this video on Youtube and I found it very interesting.
Codemasters released a game collection on CD for the Spectrum and I believe the C64 and one other system as well back in '89.. called the Codemasters CD Games Pack.
If you're curious how it worked, here is the video showing it in action -
[ Show youtube player ]