Mildly Interesting

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What Happens When You Put a LaserDisc Under a Microscope? | It turns out you can quite literally see an analog signal if the conditions are right—and you look closely enough. (gizmodo.com)

submitted 2 days ago by IcedRaktajino@startrek.website to c/mildlyinteresting@lemmy.world

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[–] sartalon@lemmy.world 9 points 2 days ago (3 children)

Huh. I grew up with laserdiscs and never knew it was an analogue recording and not a digital one.

That explains some things for me.

[–] IcedRaktajino@startrek.website 7 points 2 days ago (1 children)

I never had one but they had them at school. Thought they were the coolest thing ever and also assumed digital because CDs were starting to become popular.

[–] atomicbocks@sh.itjust.works 6 points 2 days ago

Later Laserdiscs (and VHSs) had digital audio embedded in the analog audio stream the same way the GameCube and the Wii (and some N64 games) did it with Dolby Pro-Logic. But the video was always analog. IIRC the first widely available digital video format was Video-CD but that never took off in the west.