The problem I have is the DVD burner is not compatable with burning from the finder, it's spec:-
LG GSA-5163D and from the system profiler -
Super Multi DVD Rewriter:
Manufacturer: HL-DT-ST
Model: HL-DT-ST DVDRAM GSA-5163D
Drive Type: CD-RW/DVD-RW
Disc Burning: Not Supported
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Product ID: 57347 ($e003)
Speed: Up to 12 Mb/sec
OS9 Drivers: No
Vendor Name: HL-DT-ST DVDRAM GSA-5163D
Bus Power (mA): 500
Serial Number: 533170780
So I can't burn unless I spend 25x£60=£1500 on Toast for this lab of 25 iMacs. The reason was, what we got wasn't what we ordered, by the time I'd noticed we had dispatched with all the packaging and stuck security tabs on the burners, and although the retailer admits it their error it's too late to return the burners.
Thanks for the replys