The Asus BW-16D1HT currently ships with firmware 3.10 which prevents the drive from reading UHD content, how annoying.

It appears some people have patched the firmware (3.10 MK) to allow it to read UHD discs.  To do this you will need to flash your drive.  Unfortunately Windows is required to flash the drive and as I run Ubuntu I’d have to install Windows just to flash it, or connect my drive to a windows machine.  Both options were unappealing.

Luckily the same folks have created a Window PE image that can boot and execute the flash software.  From the link below download the NS40 recovery image.  (Direct Link to Image Download)  In the link beloware all the details about dives that can read UHD discs after a firmware flash.

https://www.makemkv.com/forum/viewtopic.php?f=16&t=19634

After you download the image, extract it iso from the zip file.  They recommend using Rufus to create a bootable USB.
https://rufus.ie/

Using Rufus
1. Open Rufus.
2. Select USB Device.
3. Select the ISO file.
4. Set “Partition Scheme” to MBR (which should also change “Target System” to “BIOS (or UEFI-CSM))
5. Click “Show Advanced Drive Properties”.
6. Make sure “Add fixes for old BIOSes” and “Use Rufus MBR with BIOS ID” are checked.
7. To make it easier, I suggest you leave the “Volume Label” as Win10PE_x86_4UHD.
8. File system should be NTFS.
9 Cluster size should be 4096 bytes.
10. Click START.

When you are running this Win10PE, on the desktop open the User Tools\Windows Flashing Tools & Firmware folder.
Run the flash software: BH14NS40_N1.00-A4_patched.exe.
DO NOT use the default firmware (do not click the play button).
Select the firmware MK\DE_ASUS-BW-16D1HT_3.10_MK.bin

This should allow the drive to read UHD discs as well as allow further downgrades of the firmware (though it appears most recommendations are to stay on 3.10 MK).