RMerlin wrote:AC3 should work in 5.1 with your setup. I have a WDTV Live hooked to a Pionneer VSX-519 through HDMI myself. Make sure your receiver is set to Auto Surround (I assume your Pionneer have similar settings to mine).
That is what I have been doing... but I have been having to use the "Advanced Surround" to simulate 5.1.. really frustrating me. Some of my movies only have MP3 sound (from the tags on the moviesheets) but the ones listed as Dolby or DTS only play 2ch as well. I guess I will have to pull some of them off the HDD and plug them into one of those Audio programs to give me the details to make sure it has the sound in there.
Back to the drawing board!
And thanks RMerlin