wdisneelvr, not exactly. That is one of the biggest bluffs about the DC card, that you can use it as an Entertainment card everywhere.
At the Hard Rock Hotel, for example, you can get 50% off with the card but they do not take Disney's. Why? Because in Orlando Disney controls the extent of that membership.
I e-mailed entertainment.com and disney club.com months ago, not believing the few places where I could use the card and they confirmed that what you see is what you get. When you do a search, those are the only places where your DC card is accepted as an Entertainment card, anywhere...
The coupons available in the book are not honored with the DC card. It mainly replaces the Entertainment card in a few restaurants, car shops, etc., here and there.
Wanda