I highly recommend Garry's (Homer's) method. I spent weeks figuring this out and Garry was kind enough to help me every step of the way. It was even more confusing because I'm on a Mac, but Parallels software was my salvation, as now I can use MMH. As I am also using JRiver, here's my fairly straightforward method:
- Copy/Decrypt the entire disc using MakeMKV
- Open decrypted folder in MakeMKV, deselect every section but the one containing the TrueHD stream. Within that one section, deselect everything (video, DD, etc) but the TrueHD stream. Hit "Make MKV".
- Put the resulting .mkv file in a folder named for the album (however your files are organized in your library). Download cover art for the album in jpg format. Add this to the same folder, and change the name of the jpg to wither "cover.jpg" or "folder.jpg".
- In MMH select "Extract Audio from MKV" and select the .mkv folder. It will break it up into individual .mka files. Select "Get Tags from MusicBrainz" to tag these files. Select "Copy Tags". Under "Album Art", hit the top button "Find Art" and select the jpg. Hit "Tag and Rename".
- Toss the big .mkv file. Add the folder containing all the .mka's and sidecar files to JRiver.
Voila! You've now got full lossless Atmos files added to your library. I play these over DLNA by sending them from JRiver to my Oppo 205, which sends the signal to my Pre/Pro via Bitstream so the Pre/Pro is doing the decoding. I can't tell you the satisfaction I get every time I see the Pre/Pro display ATMOS when I play one of these files.
Hope this helps and good luck!