Errors - One rip to rule them all

[SteamIronUK]

I have 2 sets of discs blu ray Lord of the Rings and The Hobbit which I have a lot of problems ripping with MakeMKV.
There are no errors reported when ripping but the content contains the same faulty output in the same places in the movies. Re-ripping does not vary where the problems occur.
I wondered if it were the discs so bought a completely brand new set to rip. I actually bought a spanish version instead of the english, but selected the english soundtrack hoping a slight variation in production might also affect things positively.
However the problems occur in the same place in the movies.
I then bought a new blu ray drive of a different type, so now I have an asus external blu ray drive Bw-16D1x-U and a internal BW-16D1HT
Both drives produce the same issue in the same places on both editions. Again nothing reported as an error when ripping.
I do not get issues with any other films I have ripped.

So I have tried
2 different drives
2 different editions

I recently tried to do the hobbit trilogy but got the same issue, positionally fixed corruptions whichever drive I used. This time I decided against buying another set of the hobbit.
Finally I tried to use DVDFab and got the same problem.

My only conclusion is that there are common faults in LOTR/HOBBIT discs OR my drives both have an inability to read the disc content in the same location
Does anybody have similar experiences with these discs? Note I have UK versions which may be quite different to U.S pressed versions.

Thanks,

[MartyMcNuts]

I have 2 sets of discs blu ray Lord of the Rings and The Hobbit which I have a lot of problems ripping with MakeMKV.
There are no errors reported when ripping but the content contains the same faulty output in the same places in the movies. Re-ripping does not vary where the problems occur.
I wondered if it were the discs so bought a completely brand new set to rip. I actually bought a spanish version instead of the english, but selected the english soundtrack hoping a slight variation in production might also affect things positively.
However the problems occur in the same place in the movies.
I then bought a new blu ray drive of a different type, so now I have an asus external blu ray drive Bw-16D1x-U and a internal BW-16D1HT
Both drives produce the same issue in the same places on both editions. Again nothing reported as an error when ripping.
I do not get issues with any other films I have ripped.

So I have tried
2 different drives
2 different editions

I recently tried to do the hobbit trilogy but got the same issue, positionally fixed corruptions whichever drive I used. This time I decided against buying another set of the hobbit.
Finally I tried to use DVDFab and got the same problem.

My only conclusion is that there are common faults in LOTR/HOBBIT discs OR my drives both have an inability to read the disc content in the same location
Does anybody have similar experiences with these discs? Note I have UK versions which may be quite different to U.S pressed versions.

Thanks,

Both LOTR and HOBBIT box sets are well known to be notoriously bad quality pressings. There are many threads about them.