You mean that overscan BS FUNi was trying to feed us? Y'know...acting like it's something that doesn't affect every other pre-digital animated series in existence?
It's pretty obvious that the reason FUNi created that faux widescreen master is because they want to hide the fact that Dragon Ball Z is an old, low-budget Japanese show. When it comes to the Dragon Ball franchise, FUNimation has been pretty clear that they don't really care about us existing fans as much as they do about grabbing new ones. Remeraber the "there's a nine-year old born every minute" quote?
And what's one way of hiding the age of a show and making it look like the fresh hotness? Widescreen.