[conservatism_IS_compassion]

So they must be using a pulsed laser to gather data on the topology of the recording, which would seem to be the most complete way of digitizing the recording. Using a needle to read out the record would risk wear/damage.

It puts me in mind of a videotaped course on digital signal processing I took back in the 1970s, in which they demonstrated enhancing an old Caruso record which had been made with a purely mechanical process, without electronics. Which had terrible frequency response. It was remarkable what they could do with that, at the dawn of digital signal processing. I would hope they could do a lot better than that now, what with mere iPads having more number-crunch capability than a supercomputer of that era.

[Hillarys Gate Cult]

No laser. It's a 3d camera. Still wonder why they never tried a pulsed laser to recover the data.