Old Audio Receiver Question

[MasterSandman]

I plan to be buying a Panasonic HDTV from the V10 series and the Panasonic DMP-BD80 to play Blu-rays.

I plan to upgrade the sound system in the next year or so so I got to make sure that my current set-up will work with this blu-ray player!

It's only a 5.1 system so I was wondering if every Blu-ray disc has a 5.1 Dolby Digital English track like DVDs or if they only have DTS-HD and Dolby True HD which my receiver won't be able to handle.

I know the BD80 has the coaxial audio output which is what I use for my DVDs so I thought that it would work fine...but how would it work if the BD only has Dolby True HD and DTS-HD?

Thanks!