system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't you make a bit-for-bit copy of a disc and use that as the original?

It seems to me that if the original disc is copied bit-for-bit to a new disc, the new one is indistinguishable from the old. Yet, you can't simply copy an XBox/Wii disc and expect it to work without patching your disc drive's firmware. I don't plan on doing this(did a few months ago, realized it was a dick move), but I am still curious as to how the protection works.
gpt
The disks used on gaming consoles have special components of the data tracks near the inside of the disk. These components can be neither read nor replicated by standard drives. Only the drives used in the consoles themselves can access and utilize these proprietary features.