Just thought of this



Maybe this is silly but i just thought of a easy copy protection for cd/dvd car navigation systems and game consoles etc. :What if they used discs with custom media descriptors and players that would only work with that specific media descriptor? I mean, corrupt files can be emulated and written to discs easily, but media descriptors cant be changed right? Theyre already on the writeable discs when you buy them? This would be possible to change by patching the bios though.