K... all fixed for now - although have only burnt 1 at moment - but it is burning
I added in a ide burner and moved the sata burner to another port - the ide worked for dvd 1st time - so eliminated software/os issues.
uninstalled burner causing issues - moved to another sata port and it is now working again.
is the drive on the way out?? about 3 weeks agao it started auto closing after you open it, is this a sign that drives are their on way out?