Pressed Bluray Scan

I have been scanning some pressed Blurays, and I got these results in one of them, what does it means?
I watched a few weeks ago and played fine.
The Little Mermaid Diamond Edition
Pressed by Technicolor México

Maybe there is some dust on the surface of the disc, making it unreadable at higher speeds.

A BluRay player reads at the speed of 1x, so error correction worked when playing the disc.
Your error scan was done at 8x speed, so try to scan the disc at lower speed or clean it a bit.

Once the scan drive loses tracking caused by high error rates, the rest of the disc is shown with maximum error rates, thats why your screenshot looks like this.

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It could also be part of some kind of copy protection

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