hi i have duel dvd wrighter! BUT i need to no if i copy a dvd-r to a dvd+r or the other way round will make any difference 2 the movie or the file on the disc?
I don't think it will make a difference. I suspect that the media will be transparent to the movie. data is data is data whether it is on a -r/+r/-rw/+rw. Now why you would want to do that is another question as -r has better compatibility.