Technology

Vinyl has a slow progression in quality degradation due to friction

With conventional record players with a mechanical head. I suppose that you could probably use an optical one -- I remember reading about that being used by archivists.

google

Yeah.

https://en.wikipedia.org/wiki/Laser_turntable

The thing I think I remember reading about was apparently this related thing:

IRENE

The IRENE system uses a high-powered confocal microscope that follows the groove path as the disc or cylinder (i.e. phonograph cylinder) rotates underneath it, thereby obtaining detailed images of the audio information.[9] Depending on whether the groove is cut laterally, vertically, or in a V-shape, the system may make use of tracking lasers or different lighting strategies to make the groove visible to the camera. The resulting images are then processed with software that converts the movement of the groove into a digital audio file.[10]

An advantage of the system over traditional stylus playback is that it is contactless, and so avoids damaging the audio carrier or wearing out the groove during playback.[1] It also allows for the reconstruction of already broken or damaged media such as cracked cylinders or delaminating lacquer discs, which cannot be played with a stylus. Media played on machines which are no longer produced can also be recovered.[6] Many skips or damaged areas can be reconstituted by IRENE without the noises that would be created by stylus playback.[5] However, it can also result in the reproduction of more noise, as imperfections in the groove are also more finely captured than with a stylus.

considers

If you can get multiple physical copies of an analog recording, you could probably scan them and use statistical analysis to combine information from the physical copies, eliminate damage from any one copy.