The GOUT's opening shot is already cleaner than the rest of it, but for PaNup™ it certainly wouldn't hurt!

If the disk was all squeezed, I would be trying to get my hands on at least two copies... PDO UK rot is (a) all to common and (b) completely different than other rotters. On most LD's the signal is destroyed in small spots but the rest of it's just fine usually, but with PDO the reflectiveness itself is reduced all over the disk and SNR is quite low.

So to get a good quality PDO UK rot capture at least two/three copies need to be averaged, whereas a regular disk level 1 or 2 rot usually won't affect my software too badly, the compensation is pretty good. And the merging program when (re)written will reduce rot further if you have multiple copies of the title.