How is so much information stored on such a thin layer of material?
When you press skip, how does the reader know how to go to the next track/chapter?
In: Engineering
While a CD/DVD looks flat it’s got a ton of teeny-tiny little pits. A laser will bounce off the bumps in different ways depending on the pit. How the laser bounces off the pit reads as a 0 or a 1. From there you just have data encoded in various ways depending on the particular format. That data also encodes locations on the disc itself so it knows where a “skip” is to go to.
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