You might be interested to dig deeper around the archive and see what they're doing. Each record is transferred using four different styli, and then an enginee

You might be interested to dig deeper around the archive and see what they're doing. Each record is transferred using four different styli, and then an engineer at GB picks which recording to use as the example - but all four are in the archive. They have a video up about the process too - https://archive.org/details/mass78rpmdiscdigitization https://archive.org/details/mass78rpmdiscdigitization