In a CD or DVD, the data is stored in pits on the surface of the disk. However, rather than each pit corresponding to a bit, the transition from pit to no-pit or vice versa, or lack of, is used to store information.

However, does this have any advantages over each pit corresponding to one bit? I can't seem to find anything about it online.

I suspect it may have to do with writing to the disk, or perhaps with reducing the damage caused by scratches on the disk, but I haven't read anything that has any reasoning for why.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.