Writing to commercially distributed media

vbimport

#1

Is it possible (perhaps using a modified driver) to control a write laser of a CD or DVD burner to mark a commercially distributed DVD or CD? For example, say I had a 20 year old CD, who knows … let’s say Meatloaf. For whatever reason if I wanted to mark some kind of pattern on that CD is it possible?

I understand CDR and CD-RW media are specially constructed to allow marking by these writers, but I wasn’t certain if that necessary precludes a CD or DVD writer from marking a “regular” store-bought audio CD or DVD.

I realize there may be some software protection preventing the CD/DVD writer from doing it but more curious if it would be possible to write software to control the writer to do so.

Thanks!


#2

Commercially distributed a.k.a. regular store bought CDs and DVDs are not recordable, they were never written/burned but rather pressed, and you cannot write to them regardless of the drive and software used.

I suggest reading theCD Manufacturing article at Wikipedia.

Welcome to CDFreaks! :slight_smile:


#3

Cool, thanks!

If I understand then, it’s completely impossible - the write laser can’t alter a commercial disc in any fashion? Not even to destroy the disc by uncontrolled marking with the laser?


#4

[quote=i82much;2053812]If I understand then, it’s completely impossible - the write laser can’t alter a commercial disc in any fashion? Not even to destroy the disc by uncontrolled marking with the laser?[/quote] That’s essentially correct.

I could speculate about what would happen if you were to write your own firmware to turn the laser power to maximum and continuously burn the same area - it might degrade the disc in some way, but that is pure speculation.