I just love old videos , especially those of Railways and Motor Racing that have not been re-released on DVD , but I digress!
I've had first class results from my old Sharp video recorder and Philips DVD recorder by doing the following:
Set up your DVD recorder to optimum settings by matching the playing time of the video to the recording time required on the DVD - generally speaking two hours.
Connect a scart from the output of the video recorder to the input of the dvd recorder.
Press play on the video recorder and record on the dvd recorder and sit back!
I would stress that this works for me with my equipment - can't guarantee it will with yours.