Help copying interactive dvds

hello, im new here, so hello to everyone :slight_smile:

im hoping someone can help me,
im trying to copy 2 interactive games using dvd shrink, with no luck, ive also tried nero and hp record all with no luck at all,
they are not protected, a friend has copied them and lent them to me, so obviously they can be done

do i need a special copying software? or am i just thick? lol

hope someone can help?
thanks brooke