i have a samsung super writemaster and it can certyainly burn DVD's because as i say i have had no problems burning DVD's until recently.
The software i have been using and was using before the problem occured is DVD Flick, i have tried burning with other software, however to no success.
When i am burning a disk none of the software i have tried has gives any error message and just continues as normal and finishes normally, however when i check the finished DVD it has no video on it.