LG BE14NU40 gets disconnected at final file write time

[RamshackleBear]

Hi, here's the background:

LG BE14NU40 Blu-Ray Reader / Writer - external - externally powered by wall wart - USB 3 B to A cable about two feet long directly connected to desktop USB ports. Running the latest firmware.. (1.01-3)

The Blu-Ray drive works fine in general and I've burned Blu-Rays from Pinnacle.

Ripping 3D blu-rays on MakeMKV- fails > 50% of the time immediately following the "Operation successfully completed
Saving 6 titles into directory D:/Video/Movie" message. For the 3D movies I've been attempting, it typically takes about 60-80 minutes to reach this point. The log reports average read speeds of 5.5X (drive spec'd at 6X max).

Specific popup dialog - "Copy complete. 0 titles saved; 6 failed."

Specific log messages:

Operation successfully completed
Saving 6 titles into directory D:/Video/Movie
Error 'OS error - STATUS_DEVICE_NOT_CONNECTED' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '16783767552'
Error 'OS error - A device which does not exist was specified' occurred while reading '\Device\CdRom1' at offset '16783767552'
...
Failed to save title 0 to file D:/Video/movie/movie_t00.mkv
...

Device manager shows that the Device is no longer connected.

I switch the unit off (power switch on back) and on again and it reappears in Device Manager. Rinse/Repeat.

Error occurs many minutes (> 10) AFTER the disc has stopped spinning.
The unit is room temperature inside (disc temp) as well as case - additionally, I ran tests with the unit sitting on an ice pack - not a high temperature issue.
Not a USB hub problem - tried it in multiple direct connect USB 3.1 and 3.2 connections on my Alienware.
Not powered by USB - has dedicated power supply that came with it.
Not a USB sleep issue - I have my power profile set to never suspend USB or PCI.

It says it is using "Direct Access Mode" - I saw an earlier post saying to disable this in Preferences, but I don't have an option to disable it in Preferences.

Running version 1.18.1 on Alienware desktop, Intel10900 (not overclocked); 32 GB RAM; latest Windows 10 Pro (22H2 OS Build 19045.5854); nVidia 3080.

Any potential solutions would be greatly appreciated. I was looking forward to watching my 3D movies on my newly acquired Quest 3.

Thanks!

[MartyMcNuts]

Hi, here's the background:

LG BE14NU40 Blu-Ray Reader / Writer - external - externally powered by wall wart - USB 3 B to A cable about two feet long directly connected to desktop USB ports. Running the latest firmware.. (1.01-3)

The Blu-Ray drive works fine in general and I've burned Blu-Rays from Pinnacle.

Ripping 3D blu-rays on MakeMKV- fails > 50% of the time immediately following the "Operation successfully completed
Saving 6 titles into directory D:/Video/Movie" message. For the 3D movies I've been attempting, it typically takes about 60-80 minutes to reach this point. The log reports average read speeds of 5.5X (drive spec'd at 6X max).

Specific popup dialog - "Copy complete. 0 titles saved; 6 failed."

Specific log messages:

Operation successfully completed
Saving 6 titles into directory D:/Video/Movie
Error 'OS error - STATUS_DEVICE_NOT_CONNECTED' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '16783767552'
Error 'OS error - A device which does not exist was specified' occurred while reading '\Device\CdRom1' at offset '16783767552'
...
Failed to save title 0 to file D:/Video/movie/movie_t00.mkv
...

Device manager shows that the Device is no longer connected.

I switch the unit off (power switch on back) and on again and it reappears in Device Manager. Rinse/Repeat.

Error occurs many minutes (> 10) AFTER the disc has stopped spinning.
The unit is room temperature inside (disc temp) as well as case - additionally, I ran tests with the unit sitting on an ice pack - not a high temperature issue.
Not a USB hub problem - tried it in multiple direct connect USB 3.1 and 3.2 connections on my Alienware.
Not powered by USB - has dedicated power supply that came with it.
Not a USB sleep issue - I have my power profile set to never suspend USB or PCI.

It says it is using "Direct Access Mode" - I saw an earlier post saying to disable this in Preferences, but I don't have an option to disable it in Preferences.

Running version 1.18.1 on Alienware desktop, Intel10900 (not overclocked); 32 GB RAM; latest Windows 10 Pro (22H2 OS Build 19045.5854); nVidia 3080.

Any potential solutions would be greatly appreciated. I was looking forward to watching my 3D movies on my newly acquired Quest 3.

Thanks!

So MakeMKV is having trouble reading the disc at the given offset. It tries so hard, it runs out of power and loses connection. The disc may have a scratch or something. You could try cleaning the disc, then see if you can rip it. Also, you might need to try doing a full disc backup first (press the little folder icon in the top menu instead of the big drive icon)

[RamshackleBear]

Thank you - I was able to do a full backup of this disc and then generate the MKV files from the backup. Seems faster too I'll try the other discs that had been failing and see if it works for them.

Thanks
Dave