I just got my first blu-ray player today. It's an LG BD570 and it's connected to an Insignia NS-R5101HD receiver. In the Audio options I have PCM Stereo, PCM Multi-Ch, DTS Re-Encode, and Primary Pass-Thru. I need to know which one to put it as. I tried a blu-ray movie (Fourth Kind) and on PCM Multi, it does not come through as Dolby Digital or TrueHD or whatever. On DTS Re-Encode, the insignia shows it's in DTS mode but thats it. In the audio options of the disc, it just shows DTS-HD but no matter what I select it doesn't show DTS-HD is going on the insignia. I'm very confused by this and probably confused you guys but if you can help, that'd be great.