Here is a description of what Apple recommended. These were the steps that were to guide me through Final Cut Pro X. At the end of this, I will add just a couple more comments you should consider:
Unfortunately, when I tried to burn a Blu-ray disc from Toast, it would not play. This set in motion an extended set of email exchanges with the Toast technicians but we never found a solution that would work. So, I next turned to Apple to get advice on how to burn a Blu-ray disc from Final Cut Pro X. Here are the steps that I was eventually told to take—and it worked:
1. From within Final Cut Pro X, go to the File pull-down menu and find the Share option.
2. Click on Share and look for Blu-ray/AVCHD and choose that one.
3. A window labeled Blu-ray/AVCD window will open.
4. Choose “Info” and information for the title, description, and tags.
5. Choose “Settings” There several options to address:
a. Output Device (Choose ASUS BW-16D1X-U)
b. Layers: Automatic
c. Build type (grayed out)
d. Disc template (I chose “Black”)
e. Title: (I put in “Our Golden Anniversary-2021”)
f. Volume name: (I put in Golden Anniversary-Blu-ray)
g. Color Space: Standard-Rec.709
h. When disc loads: Show Menu
i. Markers (unchecked)
j. Loop: (unchecked)
k. Background: (didn’t use)
l. Logo Image: (didn’t use)
m. Title Image: (I used the Introduction Title.jpg file)
n. Built in captions: (none)
The next step was to click on the “Share” button. You can monitor the progress by clicking on the upper-left image to the right of the “key” image. Once the disc is burned, it will eject from the burner.
While the advice I got from Apple did "work," it was not without problems.
I tried once more to get assistance from the company that sells Toast 19 Pro but got back more useless suggestions and no responses that indicated they had even read my prior messages. So, I just decided to request a refund. Fortunately, this all took place within the 30-day window that allows for a refund. And I got it.
Unfortunately, despite all the assistance I received from Apple technical support, we were unable to burn a disc as a Blu-ray file as it was originally created. If a Blu-ray version of the material was burned to a disc, it would pixilate toward the end. Also, the chapter markers never allowed for accurate navigation. If a person chose a certain year in the video file, you never saw the actual number of the year appear—only the contents for that year. Finally, even if you just burned the entire file in the .m4v format, the image would break up after about two hours of viewing.
The final outcome was to break the original file into two files and put each on a Blu-ray disc. Frankly, it would be hard to overstate how frustrating this whole process was when it came to burning discs.
It turned out that an addendum needed to be added to this section. I had burned DVDs with each having the two files mentioned above. However, people began to realize that either they lacked a Blu-ray DVD player that would recognize the disc or else it could be recognized but that the first file would stop at some point before it was finished. The only solution was for them to actually find a Sony Blu-Ray player so they could view the video. Sending such a large file was not feasible with YouTube. In the future I might just mail a large capacity thumbnail drive with the material on it.
To sum up: Toast sucks. Apple helped but could not explain why a 2.5 hour video could not be exported without problems. And further, their advice on the use of chapter markers fell short because, when the video was played, the chapter markers did not allow for flawless navigation. This is truly a sad situation because I cannot find any other application that would allow me to create the kind of "wrap-around" functionality I once had when using iDVD. Surely there has to be a market for its successor, don't you think?