Optigan

We’ve had partial success at duplicating discs- enough so that I’m convinced that its possible to do successfully if you put in enough effort to figure out the exact formula. The original Optigan discs were duplicated onto a special grade of Kodak film made exclusively for the Optigan Corporation, so a perfect replica would be impossible unless you paid Kodak enough to put it back into production. Still, you could probably get pretty close. But the amount of money spent in the effort would probably not be worth it compared to the fun you would have trying to hunt down the real thing.