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The problem is solved after a BIOS update of the motherboard.
Now I can rip UHDS in about 50 minutes and Blue Rays in about 30 min. without getting any error and I am happy.

However should I update the firmware of the drive too ?

If I understand all these postings on the forum. 3.10 is the newest ...

No USB Enclosure the drive is attached directly to SATA Connector on my motherboard.
Firmware 3.01 is ok ? Or should I update ?

Hi,

What is the best firmware for ASUS
Produkt: BW-16D1HT

Actual firmware:
Firmware-Datum: 2117-03-31 14:26
Markierungen der Bus-Verschlüsselung: 1F
Highest AACS version: 66

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Original (unpatched)
Firmware version: 3.01 ...

Yes I have 2 physical CPUs each 18 cores. But MakeMkv can read from my UHD friendly Asus BW-16D 1H 3.01 only at a very slow speed.
As already mentioned it takes 12 hours min. to rip a 50 GB from the UHD. Even much longer to rip 70 GB.
Copying to content of the UHD to the harddrive is much faster ...

I am using a Dual Xeon machine (36 cores total), 128 GB RAM + Nvidia 1080i graphic card under Windows 10 - 64.
What is ccextractor ?

It takes me about 12 hours to rip any UHD disc in my Asus BW-16D 1HT 3.01.
Is this the normal ripping time ?
Or is there anything which could be done to speed up ?

Ripping time for Blue Rays is much faster