I have a Targa DVD Recorder with Hard Drive , When I record a programme and try to copy it to disc , It says either "No disc inserted" or "Change Disc" I have tryed using DVD-R/+R , DVD-RW/+RW etc and none seem to work. Although it still plays a normal DVD , Im thinking the burner is failing. Any ideas where I can get a replacement as I need to copy some stuff from the Hard Drive Thanks in advance