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Why are you getting so testy?
No where did I tell you to buy a Mac or other software. I don’t use DVDA or PCs so my response was going to be limited to basic suggestions, was not commenting on DVDA or PCs good or bad.
I did not say that everything was broken either, but here are places the to start looking, hence the use of “maybe”.
Now did you install a CD drive or a DVD drive? I’m assuming a DVD drive. Can you burn a DVD disc with other software? even just data on a DVD?