Sony will cut around 250 jobs from the recordable media business manufacturing hub and will gradually cease production of optical discs, including Blu-ray discs.(mainichi.jp)

Pressed discs (like movies) are physically… pressed. They make a metal mould which is then stamped into melted plastic to make the pits and lands and then coated with a metal film to make the reflected backing, filling in the pits. This makes manufacturing of millions of disks extremely cheap since it takes seconds per disc. Burning commercial disks individually in thousands of burners would be way too slow/expensive.

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Optional@lemmy.world

6 points

21 days ago

Wow just like vinyl, sort of huh? That’s fascinating, I never considered it.

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frezik@midwest.social

2 points

20 days ago

- as opposed to +

WELCOME TO THE RABBIT HOLE

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