Trying to burn a few data dvdrs. Burner is a lite-on 411s dual format. I can burn movies fine with no problems but when i attempt to do a data backup i get file verification errors (says disc error for the problem). Tried 2x and 4x of both dvd-r and dvd+r. Any idea on how to fix this? Is there another program similar to nero that will allow me to burn data dvdrs?