"With vinyl all you really need is something that rotates and a thin nail." All you need something that rotates and a thin nail? It is really hard to make som

"With vinyl all you really need is something that rotates and a thin nail." All you need something that rotates and a thin nail? It is really hard to make something that rotates well enough to play vinyl discs. I know because I made my own DIY vinyl player as a young engineering student. In the end it was way simpler and it did sound better to make a contactless(optical) head with air blowing to remove the dust. Even then it did not sound as well as the real thing. It takes a couple millions of dollars to replicate an old vynil player with similar quality. Those plates are balanced and big. The head needs micromachined components. Companies spent an enormous amount of capital in order to do it right, and every unit is expensive to make. It is way simpler to read a CD today than to read a Vinyl. Normal players also destroy the discs over time. How many optical Vinyl players you see? How much them cost? Reading CDs is super simple. They are pots or no pots, zeros or ones. We could do it with simple step motors today and cheap lasers. One aberrant [and multiple] perturbation on the medium in digital is easily fixed with CRC checking. Also with digital there are millions of disc with the exact same information. For archivists this makes incredible simple to restore all the information. It is in analog where you lose data. First, every disc, or film or tape is different from the others, you can only guess what is original and what is noise, degradation and so on. In Vinyl, if the head jumps too fast your sound saturates and you lose everything in between. Dust , scratches, a hair, everything could harm you.