Behind the Scenes: The Manufacturing Secrets of CDs, DVDs, and Blu-rays

[@legendbyhandmade]

thanks for this information

[@williamjones7163]

I have been using optical disc's since their beginning. I remember when they were called optical disc's and a reader/writer was $10,000.
Now we use them as Christmas ornaments.

[@ColdGrayMorning]

About floppy discs