DiscJuggler Pro CAV optimization?

[madsharpei]

I use the latest discjuggler to create a dvd video backup.
Should this CAV option be enabled or disabled?
When it is enabled it writes the entire disc to 4482MB(DVD+R) when my original files were 4401MB.
Does it make it better.
My burner is a plextor 716A

[madsharpei]

From the discjuggler manual;

If the data disc you are burning is not full,by selecting this option you will allow Discjuggler to generate an appropriate number dummy(empty) blocks at the begining of the recording process thus moving your data as close as possible to the outer edge disc where the read speed is highest.

Will this cause skipping/freezing playback problem when the disc is written full capacity(4482/DVD+R).

Plextor 716A 1.06