I have to compose a research article for school about CDs & DVDs and the technology behind it. Right now, I am working on the part about error correction and thought it was a good idea to maybe include a little experiment. I have read a couple of times across the web that you should be able to drill a small hole into the CD and it will still work because of CIRC.
So I went ahead and made a 1mm hole (see picture). I played the CD on several players and it does not work. Any suggestions why?