[zbuf]

I also think perhaps we over estimate how "digital" CD playback is.

I repaired a CD player recently and learned that the control system which guides and powers the laser is entirely analogue. Only the audio pickup was a digital signal.

I'm sure designs vary, but it made a great deal of sense when you consider a design from the 70s and 80s.

A CD is digital, but a CD _player_ is a surprisingly analogue device.