Weird Blu-ray disc edges

[kendrick357]

Under the influence of articles about used/resurfaced games being sold as new games (re-sealed without PS3/PS4 strip), I have examined my collection of Blu-rays. BTW, I do not think that there are many resurfaced Blu-rays (thanks to Durabis protection layer) because I have never seen a scratched Blu-ray. Anyway, all of my Blu-rays look alike except one! What's with the edges? Something like triangle pattern.

 

Quote

 

https://pasteboard.co/JLNPyX7.png

https://pasteboard.co/JLNPTf2.png

 

 

a) disc rot

b) impression from a disc resurfacing machine

c) poor manufacture

d) something else

Edited January 29, 2021 by kendrick357