Axiom Home Page Forums General Discussion Technical Questions Tivo Recording/Playing DD 5.1 movies

I watched a movie last night (2 Fast 2 Furious) that I recorded on my DirecTV Tivo unit.

During the opening credits, it said it was playing in DD 5.1. Since my Tivo is setup for DD 5.1 and I have an optical cable running from the Tivo to the receiver, I thought, "cool".

This is where I get confused. I turned on my Denon receiver and it never displayed "Dolby D" like it does when I watch DVDs. I kept cycling through the surround options and finally watched it in Dolby ProLogic.

Is this the way it is or am I (as usual) doing something wrong?

Thanks, John