I had a weird issue today...I was on catalina and using mkv as usual. same the last few months and everything was fine till my system randomly dropped the burners...it wouldnt show up in finder at all. I tried everything, reboot, new cable, change burner etc. nothing worked. I updated to big sur and after some tinkering it shows up again and mkv is working.
the problem...4k blurays are back to being ejected. Did it reset the firmware or driver? do i just need to reinstall? wanted to check before I accidentally make something worse, being a new os wanted to make sure its not an os issue or correct the right stuff.
thanks.