I recently purchased some new dvd's. And I wanted to back them up using clone dvd. But sometimes I get a navigation pack 6 error.or like it says its trying to repair a defected dvd structure.but than it says error.some components might be missing. and than navigation pack 6 error and etc. i upgraded 2 the most recent of clone dvd. so i was just wondering is there another update that i can get? or can i just not back up certain dvd's I purchased?