The mobo is a MSI 645E max-u
The DVD burner works fine in my other computer (a much older computer at that), it does everything it is supposed to. Also the CD burner from the other computer works fine in this one. Only thing the DVD burner will perform in this computer is to burn data, as far as backing up and copying CD's, this is where it all turns pear shaped.
Only thing I havent done is to change it from a master to slave on this computer, I suppose that may be an option, but cannot see what difference it would make.

Cheers

Peter