OK, I just successfully converted a TrueHD track to LPCM using eac3to/pcm2tsmu. I muxed a small sample together at about 60 minutes in to the movie. I only got the R/L channels though, probably due to my set up limitations. The display on my PS3 did say PCM 5.1 6.9mb/s. I'm still pressed for time, I hope to have something for you before I go to work tonight.