Why does the “Open device failed” window appear during the copy process?

Very rarely will this error occur when you are about to start burning after reading a DVD/ Blu-ray, the reason is that the optical drive is occupied. To fix the issue, please set “Read I/O” as “File IO” in “Preferences” or copy the movie disc to your hard drive first then burn it to a blank disc.



Updated : Jul 25, 2021.