I was unable to hear any of the audio on Season 6 of the Soprano's on my X9S... It is encoded using LPCM unlike the other seasons that use DTSHD-MA. I found this solution on AVSForum... It works perfectly! This post is to share some information and the solution to the problems I was having with MakeMKV and Blu-rays with LPCM audio. When remuxing Blu-rays containing LPCM audio with MakeMKV, I would not be able to playback the LPCM audio track using anything, including VLC on PC, Popcorn Hour c200, Boxee Box, etc. MakeMKV sets the Codec ID to "A_MS/ACM" which is a very uncommon codec. To solve this problem, open MKVmerge GUI, and go to File -> Header Editor. Then go to File -> Open and browse to your MKV. Scroll down to the audio track that contains the LPCM audio and change the Codec ID from "A_MS/ACM" to "A_PCM/INT/LIT". Then File -> Save. Your MKV will now contain an LPCM audio track that should be compatible with any software or hardware capable of playing MKV files... Hope this helps...
