I don't have a fix for that, and up until your post was unaware of this issue. I will be sending that information up to the engineers this evening. If I hear of something in the meantime, please let me know. As well, if you find other issues, please don't hesitate to add them.
I apologize for the inconvenience.
So I got the kick butt totally awesome Kung Fu Panda BluRay and being an animator myself I was psyched to sit down with the Animator's Corner commentary. Except I get no audio on it. The other commentary track works great, this one gives me nothing. I've updated the firmware, I've tried both the PCM option, and the Bitstream (re-encode) (with Dynamic compression, and PCM downsampling, both turned on and off). I haven't tried the Bitstream (audiophile) option cause I've heard it can be dangerous to send uncompressed audio to some receivers. I need to keep it on Bitsream (re-encode) to get 5.1 or 6.1 audio for my movies from the player. If I leave it on PCM everything plays in just 2 channel audio.
I send the audio to my receiver through the Fiber optic out, my receiver is a Yamaha HTR-5830. It's not a high end receiver and its a few years old, BUT for the size of the room and what I need its perfect.
ARGGGHHH and I just noticed that some of my Ratatouille extras that had audio yesterday now after the firmware update don't get any audio.
This is so frustrating.