I posted this yesterday but now I can't find it. None of my dvd's that I burn work, I uninstalled all burning software and even used the Roxio and Nero clean tools to ensure it was all gone. Now, I tried burning a dvd and it appeared to be working but then got stuck halfway. I tried another but this time it 'simulated' writing but there was no activity light and of course it is empty. When I tried before with Nero it gave the error unable to close using disc at once. I've searched high and low for a solution for this problem. I've already scanned for viruses and cleaned the system. I am at a total loss of what to do now. Any help would be most appreciated.