In my initial test of a new session recording kit, some records were lost due to lack of audio. Also, the test setup used powered lav mics, which don't fly too well with multiple presenters.
As a follow up, I tested the Zoom H2N digital voice recorder because it just so happens to have a line out jack. So the question was whether that line out would be compatible with the HD PVR for audio. I'm happy to report that it is!