Hi, I have tried everything with Nero now to get it to burn, i have even replaced my dvd burner for a new one to see if that was the problem, but to no avail. I have clean it off with Nero cleaner then mreinstalled it and when i run the 'Nero Info Tool' it stops at hardware and comes up with the 16 bit MS-DOS message 'C:\WINDOWS\system32\cmd.exe C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and microsoft windows applications. Choose 'Close' to terminate the application.' Any advice please, please!!!!!!!!!!