I would think new geometry would be in order if this is to come to be.
jb
jb
Patents Filed for ‘High Definition Vinyl’ Technology
Imagine a vinyl record that has 30% more capacity, 30% greater volume, and double the audio fidelity of a typical LP sold today.
http://www.digitalmusicnews.com/2016/03/15/high-definition-vinyl-will-soon-become-a-reality/