I am trying to copy a DVD using OSex. When I look at the file properties of the DVD, it says 7.71GB. But when I open up OSex, it says the file size is 3.79GB. If I just do a straight copy using OSex, will it work properly or do I need to use Process #2 as described on this website:

www.anycities.com/user/bilestyle/index.html

Go to Tutorials > OS.x.x > DVD to DVD-R/Downsampling. Thank you for your help!