I have rendered my drive incapable of detecting store bought dvd movies. Apparently when you download the firmware from Sony (1.0f) you must make sure you follow directions carefully. From what tech support told me, I was supposed to diable the dma settings in the atapi controller dialog in system settings before I installed the firmware update. Nice of them to inform me of that before I did it. I have to say that I have not been impressed with this drive since I bought it at Best Buy in early October. It has never worked properly since day one. My father has one also and he has similar problems. Now I have a $350 cd burner. Does anyone have any better luck with this drive, or maybe someone can tell me how to fix this thing before I pull out the sledge and kill it. Sony wants me to send it to them for testing. Great. What am I supposed to do in the meantime?