I'm more than willing to try this. I just downloaded the tools, but have never used them. Can you give me a short step by step how you use these two tools to remux a movie?
Sure thing. Did you get the Streams Extractor as a standalone or as a part of MeGUI? (I use the one in MeGUI, which is slightly different,but you should be able to get the idea anyway.) Hopefully, I don't miss any steps. If you get stuck, just let me know.
1: Rip the movie to your hard drive.
2: Open HD-DVD/Blu-ray Streams Extractor and extract the audio.
2a: Select movie rip folder as input.
2b: Select output location (if not already)
2c: Select the correct feature, (playlist essentially) which would be the movie. (Depending on the version you have, you may need to click "Feature(s)" if no features appear)
2d: Select what audio you want to extract. (For HD audio, make sure you select HD, not the core)
2e: Run it.
3: Use CloneBD to create a mkv with just video (and subs if you want). NO AUDIO!! Make it whatever size you want.
4: Once you have a mkv (video only file) and the extracted audio track(s), use mkvtoolnix to mux them together.
4a: Drag & drop video mkv into the "source files" window.
4b: Drag & drop audio track(s) one at a time into the same window. (You will get a popup box asking if you want to add or append files. Select option 1 - "Add as new source files to current multiplex settings")
4c: In the window below "source files", your items will appear. You can click each item then edit the options to the right (default track, language etc). Make sure the ATMOS audio is the default track.
4d: If you don't want/need the global tags or chapters, just un-tick them.
4e: Select the "output" tab at the top. Clear the "File Title" field.
4f: Set your destination file name and location down the bottom then click "Start Multiplexing"
Once the new mkv has been muxed, you are done!
By the way, what movie are you going to test? And does it use seamless branching?