Hi there. I am using version 11.0.2.2 x64 version of DVD Fab and bought a new drive so i could rip UHDs. I successfully downgraded the drive firmware last night, but Im having the same issue as i had ages ago. When trying to rip a UHD to MKV 4K, it will get to 3% then say the process is complete, but nothing is output... UNLESS i use the MKV Pass through option,, or i disable the GPU codecs for converting, which of course takes almost 24 hours. What can i do?