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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.


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Updated : 2023-08-11.