i've been using dvd shrink and dvd decrypter to burn my movies. i always have decrypter set to ISO on the mode tab and haven't had any major problems. correct me if i'm wrong here...i would select FILE if i need to compress the movie, right? this may sound dumb, but i thought i had been doing that all along anyway even w/ ISO selected. is there a tutorial or guide here that would explain how, when, or why i would need to use each one?