In the guide, under the headline Cropping, there´s something about the axels having to be multiples of 16. What does this mean? I´ve done one dvd-rip and i think there was some of the film missing on the sides, this could of course just be my mistake but it would be good to know. Can I use higher resoulution than 720x576? Will any resoulution do or does it have to be calculated by that X-axel/16=40, 40x9-method ?