What I care about is: Is the disc within the specs? If it is I will go further and comment the result based on average PIE and PIF.

Notice that a VERY tiny scratch will affect the total count of PIE and PIF errors. But since there ( usually at least ) are fewer PIF errors total the total numbers will increas much more in % than the total number of PIE errors will increase. scratches etc will often be seen as areas filled with PIF errors, like seen on the TYG02 and ritekG05 results in this review - I'm pretty sure there was dust particles or tiny scratches at the place you could se many PIF errors right after each other. I don't think scratches/dust should count against how I comment the results in the reviews - as that has very little to do with how good the writer is.