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Steven C. Barr(x) wrote:

Side thought...since all analog reproduction so far relies upon
mechanical contact with the recording, does not that mean that
ANY playing of an analog recording would involve some measurable
degredation of the object (recording) being played?

Certainly, there is some deformation. Probably there is degradation. Possibly the change may be detectable. Detection itself means some form of measurement which means some sort of playing which implies deformation, probably degradation ...

As for optical reading (laser or otherwise), there will be quantum effects at least, though admittedly the deformation and potential degradation will be exceedingly slight.


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