its not, thats a nerd myth! i scratched the hell out of that side of a cd on purpose to see and the cd still worked...then i threw it like a frisbee into the wall...niether half worked...
it was my opinion, that if you scratch it good enough, the reflective surface on the back of the "Label" would also come off (i think this is true, becuase if you scratch the "label" you can see straight through the CD) then, i think the laser doesn't reflect back with the data/music, and your cd is ruined
it was my opinion, that if you scratch it good enough, the reflective surface on the back of the "Label" would also come off (i think this is true, becuase if you scratch the "label" you can see straight through the CD) then, i think the laser doesn't reflect back with the data/music, and your cd is ruined
this is true cuz i scratched the back and i could see completely see through some parts and it wouldnt play at all