There is no such thing as a "DVC Discount" related to any Annual Passes (No matter what Member Services says).
There are three separate categories (or price ranges) of Annual Passes. The lowest price range is for Florida Residents. There is a higher price range for DVC Members. And the highest price range is "Tourist", which is people who do not qualify for either of the other categories.
And of the 12 possible DVC Member AP types, only one is exactly a $100 difference. The price difference ranges between $35 and $125.
Regular and Premium Annual Passes have the same privileges, no matter which price range they are in.
If you go to the locked sticky Everything About WDW Tickets in the TPA&S Forum, Post #18, you can get all the prices. An easy way to get to the sticky is by clicking on the link in my signature.