What is the scientific explanation why we need mod chips?

[thewessman]

very wise indeed. I did some searching and didn't find anything, sorry if I asked a redundant question. Can you post the link to that comment?

So basically there is a physical difference in the CD/DVD that is a major part of the verification process, which cannot be coppied onto a DVD-R because DVD-RW drives are unable to make physical changes to the disk.

Here is a solution that would work instead of using a modchip. Buy an electron microscope, and a very small tiny needle, and make the physical changes by hand.