Can B&K 307 support Blu Ray Players?

I know the 307 can't decode the new codecs. Just checking to see if the DVD-A 5.1 inputs can be used?
I'm not familiar with that specific piece but, as long as the Bluray player has multi-channel analogue outputs you should be fine.
I use a bluray player with my B&K 317 (factory upgraded 307). I simply use the digital coax input. I'll upgrade the 317 at B&K as soon as the new audio processors are available.