Hi john, sorry I couldn't do a vid for you but I hope the images below explain a little bit :-)...
images explained
1. before 'Auto-size' is turned on, notice track title cards cut off at edges of content panel.
2. before 'Paged scrolling is turned on, notice the arrow shows scrolling motion of title card across screen
3. After 'Auto-size' is turned on, notice tile cards now auto-fit to screen.
4. After 'Paged' scrolling is turned on, notice there is no scrolling motion, the next page of title cards is just shown.
Hope that helps :-)