Longtime dbpoweramp user, decided to try Perfect Tunes to check aspects of my library and think I've found a bug in its results reporting.

Pointed it to a network folder tree containing a series of folders (each representing an album) and let it do its thing.

For a few albums there are known issues in that they had digital attenuation applied and are thus no longer the same underlying audio as the original rip, and should therefore fail. Each of those albums were reported as albums PerfectTunes cannot check on account of a differing track length than the CD original. I'd have thought the attenuation would result in the accuraterip failing due to there not being other rips with the same checksum rather than different length. Is it likely digital attenuation would alter the track length, or is the error reporting perhaps not sufficiently granular?