krus_aragon
Established Member
Jam was the substance I remember being used in those kinds of demos, with the hilarity that minor surface scratches could still make a disc unreadable.Remember Tomorrow's World putting spoonfuls of cottage cheese on a CD, cleaning it and putting it in a player and it worked perfectly.
In fairness, jam or cottage cheese on a vinyl record would not have been fun to clean out of those grooves...
I saw a clip of Tomorrow's World on YouTube where they declared that the laser which read a CD/DVD/LaserDisc didn't detect scratches and so you could put all sorts of marks on them... in my experience that's not the case! Maybe it's a case of Don't do this at home!