Just some hint for the super-sensitive UHD discs. Tried to backup Jumanji UHD this evening. The disc was cleaned 3 times when CloneBD crashed every time shortly after the start of the copy (with soap, alcohol). Then I did a "Rip to image" with AnyDVD, copy protection enabled and loaded it into VirtualCloneDrive. This time CloneBD could do the job from the ISO image. Seems AnyDVD is more robust concerning reading problematic parts of UHD discs and this method might help others solving similar issues with some UHD discs.