I have been using clone dvd for quite some time without too many problems. However recently I wanted to burn a movie which has two discs the first disc I burnt was 7.5gb and compressed and burnt fine on a 4.7gb DVD the second however was 7.56gb and when it finished writing it said that the 4.7gb DVD was not large enough to hold the movie. I ended up saving it to my hard disc to see how much it had compressed and the file was over 6gb in size. Is there a setting in clone dvd to adjust the compression if not what did I do wrong???