I tried to use LG GSA-5120D External USB DVD Burner that I borrowed from my friend,I hooked to the Desktop Win2003 SP2, I have 3 different images on the HDs (not only one, if it is one image we might be think the problem with that image itself ) and I have used two different softwares for burning these images, Nero7 and MagicISO. The process of burning was ok, but when it came to play thes DVDs I received this message : and with other DVD, I received this error : I did a test , I brought a DVD that is already burned and play with GSA-5120D, it worked. The DVD barnd that I am using are : Imation, LG I updated firmware from A102 to A104