Any analog signal can be sampled and digitized. And any signal, to get to our brain, needs to be reconverted in an analog signal (digits can be seen only by the mind).

The basic difference between the old and the new ‘digital’ media is that it is based on solid-state electronics. Allowing this miniaturization and computation, it makes information easily transferable.

The consequences are huge but I believe the base of it all is there.