The cd rot/bronzing is only present on the original PDO UK pressed FIEND CD 160 fatboy release. Luckily there exist represses from another plant. These 1989 2nd Columbia and 1986 IMP of 'Get Happy!!' discs sure are a mystery to me. I think they are made from the same digital transfer but the earlier IMP seems to have been edited the most. The Columbia still has the unedited tape hiss between the tracks and there is offset bias present in some of the end of track fades. They normalized this bias and edited the fades on the IMP. I wonder what kind of digital tools they used for this in 1986. The same flat peaks are clipping on the the IMP, so it looks like the engineer used a limiter on the Columbia. Also, the samples of the two don't stay in sync, so it's possible that the digital data of one of them was fed through an analog step.