I looked on the back of the dvd and it didn't say whether it was a DL or SL disk. "but if you are using dvdFab and you choose the main movie only option then after the rip you should see how big the ISO or Folder is, if it is over like 4.32 GB you have to use shrink". How do I tell how big the folder is? The ISO file says (4,252,752 kb). How many GB's is that? I'm such a newbie at these things! Not sure what IMO means.