Today I received the px-608AL plextor drive. I tried to burn a XBOX360 backup but I got a very slow writing speed. The media I was using are mediarang 8x DVD+R DL discs. When I was burning the speed was about 0.5 and 0.9 speed. It took about 2 hours to burn the damn thing . I thought it might be the disc or something or the burning program(imgburn), but when I started a writing test on a Philips DVD+R 16x it did the same thing. When burning the buffer empties all the time and the PC is acting really slow.