The perfect scan was just after it was burned. I could dig it out and re-scan but we lack a control as all my discs are stored this way. You would never know whether the inevitable deterioration was normal or because of the case.
I have never seen a scan from any disc stored in these cases that had gotten much worse than normal, EXCEPT all my Ritek G05s that deteriorated beyond readability. These were stored in Amway cases as well as these aluminum cases.
You can buy with no concern.