Clitches with my coping DVD recorder or software

Question

I am using a Burner called Liteonit with my PC computerFeatures: DVD +RDL80 % of the DVD's that I copy freeze for 2 or 3 seconds a few times thru out the movie---otherwise the picture is great. I use Sony discs for DL and the office depot brand for single layer.The problem is the same with both.I am using a software called DVD Cloner IV and I have also tried the latest DVD Cloner V--same result.Jerry