www.makemkv.com

That's a really useful data point — thanks for following up. Two things stand out: your BU40N reports "Drive platform: MT1959", which is the same underlying chip platform as the ASUS BW-16D1HT (different brand, same silicon). So this may be more of an MT1959-platform-specific sensitivity than a ...

The New UHD disc arrived from Amazon.

Good news it copied clean!

When first used, it saw lots of errors and failed pretty quick. This was the _Eng first file.

So I resarted my PC and used the 2nd file without the _Eng and obviously copied no problems, just over an hour or so.

Checking both disc ...

Thanks for that — useful data point. Between your PS5 glitch (recoverable) and my Panasonic UB820 playing the original disc perfectly fine, it seems like normal playback tolerates this disc a lot better than ripping does — buffered/retry-friendly playback vs. raw sector-by-sector extraction.
Your ...

Update: Received the replacement disc and ran a full set of tests.

MKV extraction (latest MakeMKV): Two attempts, both failed. Most recent fail: title 11, offset 367392768 — same ILLEGAL REQUEST: INVALID FIELD IN CDB error, different offset than the original disc.
Full raw Backup (Decrypt ...

OK - Thanks for the reply

Did you managed to fix this? - Thanks

I am seeing:-

Too many AV synchronization issues in file '/BDMV/STREAM/00681.m2ts' (title #-) , future messages will be printed only to log file
Hash check failed for file 00681.m2ts at offset 16659965952, file is corrupt.
Hash check failed for file 00681.m2ts ...

Change the Shield to 1080p and that should work, I have this issue with a 4k TV.

I currently have two LG UH12NS40 drives and they seem to work great for most UHD discs but I've found that they just cant seem to handle 3 layer discs. That said I'm looking to buy another drive that can hopefully handle 3 layers. Can anyone recommend a drive that they can confirm has worked ...

Thanks for your info.

using MPC-BE, I manged to play this full screen on my PC and then chrome cast to my Panny 3D TV

I have a very noob question that I ensure you all I have searched and don't find due to the simple nature of it.

Can LG BU40N be used without enclosure with one of the sata adapters listed on the first post?

If using the Vantec enclosure, do I have to use one of those special microsata cable ...