Not relly everything worked fine, drive couldn’t work in dma mode, it’s worked in pio(even if on the start dma mode was set, when I insert any disc, the mode change to pio), nothing could solve the problem: another fresh install of windows, upgrade of mainboard’s bios, plugging into other sata ports; I tested my drive at my friends pc and there it worked fine, I plugged LG gh22ns50 from my friend to my pc and it worked fine. Today I changed my sony drive to lg gh24ns90 and it’s working fine for now. I’ve got mainboard with nvidia chipset, my friend has also gigayte mainboard but newer and with amd chipset, it seems thats a problem with my maiboard or this nvidia chipset doesn’t like sony.