What I would do is open Shrink, select Open Files and then use the browser to select the first VIDEO_TS folder. Then I would select Reauthor > DVD Browser and then select the second VIDEO_TS folder. When you select a Video_TS folder with Shrink you end up with a bunch of files on the right in the browser window. One will be called "Main Movie" Title 1 which is the one you want. Just drag it over to the left to add to the compilation. You end up with something like this: DVD Title 1 Title 1 (2) Select Backup! and Shrink will start the process. This is easier than trying to sort out and rename .vobs. I just let Shrink do it for me.
