but when it comes to blaming HDDs
I said "maybe". The corruption errors come from somewhere, either the download went bad, or the storage has a problem. I don't care, the log is reporting problems.
About the russians... Check the log file entry:
2019-12-02 17:49:11.653 T:2571084656 INFO: ffmpeg[993FA370]: title : Frozen 2013 4K from селезень
That is not an official video file.
People coming here, with their 2nd or 3rd post demanding like "Hey, fix this!" simply because other media players with less overhead apparently have less troubles playing those corrupt videos, have no idea how obnoxious they sound. If they have a problem with Kodi because of this, they can use their other media players instead.
If Kodi had a fundamental problem playing videos, the number of complaints would be in the millions. It is not.
So yes, it's the attitude that stinks and doesn't help.