MakeMKV does not return errors although the result is corrupt

[mgutt]

I ripped a Blu-Ray and while playing the MKV I found one position where the video juddered.

So I ripped it again.

I extracted the video stream with MKVExtract and compared the checksums. Both were identical:

2021-06-03 14_15_05.png (27.39 KiB) Viewed 3022 times

2021-06-03 14_20_03.png (27.4 KiB) Viewed 3022 times

After that I cleaned the disc (which looked clean) and ripped and compared the checksums again and now its different:

2021-06-03 23_03_48.png (24.09 KiB) Viewed 3022 times

In addition the juddering is gone.

Isn't MakeMKV able to catch ECC errors of the drive (as the logs didn't contain any)?