Used makeMKV with 42GB movie and it burned this verbatim bd-r DL disc in 26.5 mins, I saw speeds up to 8.1x using Asus bw-16d1ht inside vantec nexstar DX2 usb3 external enclosure. This is the DX2 not the original DX, replaced the power supply with delta electronics adp-50yh B power adapter for a laptop supplies 12v 4.16amps 50watts , connector is a perfect fit , asus fits great in the enclosure. I saw no bubbling or damage of this verbatim bd-r DL disc after the burn, someone else reviewed that their disc bubbled, that can only be from a burner that has a laser that's too strong. Get the one I use and it should work 100% Tutorial: use makemkv and select backup and check the box for decrypt these files. Use ImgBurn to burn those folders called bdmv, makemkv, certificate. It preserves all menus , subtitles, etc from the original. It will play on a PS5, which is known to not play burned Blu rays. Flash the stock 3.10 firmware with a cross patched firmware called 3.10 MK, makemkv than recognizes that libredrive is available and that microcode is enabled. *update - I bought this external case beginning of April 2023, it's now middle of Sept 2023, so about 5 months, its held up quite nice, I've ripped through 121 DVD's and 70 Blu rays with e burner and this case. The case has held up well. I did have a failure of the Asus bw-16d1ht which died pretty quick, the 2nd Asus bw-16d1ht I got has been holding okay so far however I've had to disconnect it and reconnect it a few times , it appears like it just stops being recognized possibly due to overheating. It could be because the case has not enough air flow and the drive is naturally hot, dunno. I did have to find a guy on the makemkv forum, his guide is called "Ultimate UHD Drives Flashing Guide Updated 2023", and his username is Billycar11, he makes custom flashers to enable libredrive/ microcode. The second Asus bw-16d1ht had a much more recent manufacture date which can explain why it was more reliable but would not allow me to use the 3.10 MK firmware, so Billy had to make me a custom flasher, very strange and cool , it executed using .BAT files which I haven't seen since the early years of windows. cost was like $25 but he used some strange payment app called Zelle. it updated asus to 3.11. if this drive dies he recommended pioneer drives. from reading amazon reviews the internal ones are more reliable, blly also has a list of specific models as well. oh also the delta power supply still works well
