Render as separate video and audio elementery streams. Download tsMuxer. Mux the video and two audio streams to .ts or .m2ts.
or
Create a single title project in DVD Architect. Add the two audio tracks to the video track and create a Blu-ray. You can copy the 0000.m2ts file from the Blu-ray and you'll have what you need.
Personally, I do the tsMuxer version all the time though I have little use for multiple audio streams.
John (and the group) I wanted to get back to you and thank you for your suggestion about tsmuxer, which works great. One final question that I've been unable to find any information on:
Using the "tsMuxerGUI", I noticed a setting under the "General" tab that allows you to select the type of bitrate (Mux VBR, Restricted VBR...etc).
A couple of questions if you know.
1. Why would the program allow for a bitrate choice anyway ?
2. What would you use and would this change the quality of the video/audio streams ?
1. I don't know. I don't want it to ever encode anything. I just want it to multiplex video and audio that's already prepared into a different wrapper.
2. It likely would change the quality if it encoded. See answer # 1.
"I don't know. I don't want it to ever encode anything. I just want it to multiplex video and audio that's already prepared into a different wrapper."
True and same here. The issue is that that it appears you have no choice as the setting is one of the three, which "appear" to mux with VBR. At least from what I see.
I'm not a tsMuxer expert. I mostly use it to put elementary streams back together so I can play my Blu-ray files on hardware media players. That said, if you watch your cores while the program is running there just isn't enough processor being used for it to be encoding anything. That is at the Mux VBR setting.
I have not had an occasion to use any of the other options.