weird colors on my discs?

I’m new here and I got a quick question I hope someone can answer. I was looking over my copy of Final fantasy 9 and I noticed that there is a iridescent tint on the label side of my discs, is that normal? I don’t remember them being like that before, but I might be wrong.

If you can post a picture of the disc and point to the tint, it’d be helpful. Although I have to admit, my first impression is that it is Disc Rot. That has happened to some of my games and it’s a damn nuisance. Go and have a read of this : Disc Rot (http://en.wikipedia.org/wiki/Disc_rot). That describes this condition.

That Disc Rot Wikipedia article and this one go hand-in-hand:
Data degradation – Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Data_degradation)