That's a very useful bit of information.

At this point in the roll-out of 3D, we still don't have much definitive information on how HDMI video compatibility is going to work with existing receivers and processors. If it proves as widespread as it could be (which would be along the lines of what Scott reported above), people with HDMI v1.3 gear could find themselves with a real compatibility issue. BD3D players would need to offer one of two things to allow 3D video output and lossless audio output: either two HDMI ports, or one HDMI port and a multichannel analog output. So far, very few BD3D players have two HDMI outputs and multichannel analog outputs are also rare.