Which data structure is used in compact disks(cds) and dvds to store memory?

Analog information is converted into digital information, which is then encoded onto the disc from the inside edge out. Light is used to read the information from the disc

Please use google, you can find all kind of information you need.

Here you find most things related to compact disc: https://en.m.wikipedia.org/wiki/Compact_Disc_Digital_Audio There is also a standard documentation available, but not for free. You can find some references on the bottom of the page.

not use any data structure? linked list, tree or other

i have already do google but not show any clearity in the answer but if possible to you please understood me.

thank you