• Coelacanth@feddit.nu
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    3 months ago

    Ah, that’s what it was! I always thought it was just a different color for 0 and 1, today I learned! That makes more sense when I think about it.

    • MeThisGuy@feddit.nl
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      3 months ago

      CD - red laser

      BlueRay - blue laser… shorter wavelength --> more data on same size disk

      and inbetween there was DL - dual layer
      light scribe - could etch a picture on the top of the cd
      and RW - rewriteable CDs

      (CD is short for compact disc)