If a BR disk is directly decoded to an ISO image file on disk using AnyDVD/CloneCD or AnyDVD/ImgBurn, the resulting image contains a SLY! folder. However, if the same BR disk is first ripped to disk using AnyDVD and the rip is then used to create an ISO image on disk via ImgBurn, no SLY! folder is included and the image file is a few GB smaller. Can anyone enlighten me on the differences?