[606u]

Problems from this older post still stands with both -- PAPlayer and DVDPlayer. I've recorded a short clip to demonstrate the issue (the volume level is a bit low, tho): 24-bit, 44 kHz 5.1 sounds pretty bad: music is heard from front left channel all the time, center channel occasionally, the rest are mostly mute. Audio breaks every now and then, when garbled audio starts, moving cursor (in songs list) up and down fixes it for a short time (while cursor is sliding up or down), then it breaks again.

The audio break up (a repeated rumbling noise) should be fixed in latest Milhouse build.
If you still believe channels are mapped wrongly, then can you upload a sample file and describe your audio settings.

Confirming that multi-channel playback audio break up is fixed in OpenELEC-RPi.arm-Milhouse-20140320013122-r17977-ge57e1bc.

However, at least at my end channels are still mapped wrongly. However I don't claim audio files are correct and in Audacity I don't see indication which channel is which. If I interpret what I see and what I hear correctly, here is what I think current mapping is:

• channel 1 => front left,
  
• channel 2 => center,
  
• channel 3 => front right,
  
• channel 4 => rear left,
  
• channel 5 => rear right,
  
• channel 6 => assuming LFE, as I don't have one.
  

Except that in my files channels 1 and 2 are front, 3 is center, 4 is LFE, 5 and 6 are rear, which explains the result. You can find sample files at Dropbox link I've sent you previously, PM me if you don't have the link anymore.

Update: All the files (ALAC-encoded 24-44, 24-88,2 and 24-96 at 5.1) plays back correctly in full screen with no info ribbon; 24-96 is on the edge, tho, with average CPU idle below 10%.