Originally Posted by blackssr
AnyDVDHD, tsMuxeR,BDinfo are all you need.
Rip both movies to hard drive using AnyDVD HD.
Mount both movies using Virtual Drive
Demux the Atmos out of the movie using tsMuxeR.
Load the 3D version into tsMuxeR with correct playlist found from BDinfo.
Add the Atmos track
Uncheck the DTS HD Track
Check the Atmos track
Create new ISO with tsMuxeR.
My only concern is will the Audio and Video be in Sync.
For what it is worth,I also just figured out how to combine the two parts of large 3D movies like the following: The Hobbit: An unexpected Journey Extended 3D, and The Hobbit Desolation of Smaug Extended 3D into a single ISO. If any one cares let me know and I will write a brief tutorial on what to do. I tested both movies and no issues whatsoever. It was really nice watching continuously without having to leave part one and load part two. I think my method will also work for the LOTR Extended Trilogy but I do not own these.
Don't you just use tsmuxer to append both files or maybe use copy /b after creating the iso's?