i don't use the software you mentioned so i did not respond. the way i do it is by using only DVDshrink. assuming you want to just copy a movie like Lord of the Rings just put it the dvd drive, fire up DVDshrink. open the movie, and click the backup button. it will set all the compression by default. i never do it this way though. i always want to make sure that NO compression is used or at least use the minimum amount as possible.
so for that reason i go into "re-author" mode and drop the main movie into the editor. if there are scenes i do not want i will set the start and end frames to cut them out. i than double check to see what sound sources are available for the movie.
if it have both a 2channel & 5.1 soundtracks i will remove the 2channel track if i will burn it to DVD, if it will play from my hard disk will choose 2channel because my sound card is only stereo. if i see spanish, director's comments, ect sound tracks or something else i will remove them. this is all to make the movie near original high-quality video
than i just pop the blank DVD in and click the backup button to burn straight to the DVD