Hey, i have recently tried to burn a data disk after burning succesfully a few days before. And the burning takes a few minutes more than usual, and aty the start it makes a waered scanning noise that has never been heared before. And once its finished burning my pc dosnt pic up on the cd, and cant read it, and my dvd player can read theres a file on there(film) but stalls when i pres play to play it, the cd has been burnt onto as you can see a clear buring colour change from the rest of the cd. Im using nero 5. Can anyone help please?