...or perhaps not. All the examples shown involved lateral modulation, which
can easily be scanned-in. The tinfoil recordings AFAIK used vertical
modulation, and it isn't clear how well such modulation can be discerned by
conventional scanning. What's really needed is a method of (in essence)
removing one of the groove walls so that all the details of the modulation
can be observed from the vantage point of this removed wall. I think that a
more sophisticated method than the one demonstrated will be necessary.
On the positive side of things, if the playback quality of disc scanning can
be improved, then perhaps there's a chance for flaking lacquer recordings to
be recovered from oblivion.