Please help me....yesterday i burned two dual disks with imgburn succesfully...the games that i wrote, work correctly!! Today i tried to burn two another games in dual disks with imgburn....but i can't!!I tried to burn the same images like yesterday, but i couldn't!Always it shows me a message "I/O Error". My DVDROM is LG GSA - 4163B...I updated the firmware but nothing happens...Also i can write dvd and cd with imgburn, nero, decrypt, etc, except dual disks....What could happen?? Can anyone help me?? p.s. Sorry for my english!!