I need help to figure out why I can not load or rather, why WINDOWS can not load the correct drivers for my cd/dvd player. I am running win8 on one HD and win7 on a different HD and win7 will recognize the player, but win 8 won't. It was working probably two weeks ago (I don't use it that often) and it just stopped. I even bought a new cd/dvd player with all the drivers and downloaded updates from Plextor web site . . . Nothing works! Works great for win7 however, I want it to work (and it should work) on win8. I've tried the 'upper and lower filters with-in regedit however, I don't know what the values should be. The disk with the win8 was new when win8 version was installed. And of course I've tried to uninstall/search for newer drivers, but nothing seems to help. So, if anyone could assist me I'd be grateful. Thanks in advance.