I have mi Mac with Mohave,,  Blue ray creator supports this Os version to work and make my blue rays?,, if i upgrade to Catalina, still supports all features?

I have Mac OS-X 10.11 (El Kapitan) Will creator work for me?

I'm trying the trial version to see if this is the right program for my needs. I need a blue ray with menu creator. My question is, after I created my menu and burned sample videos on a blue ray disk, why doesnt that custom menu show up? When playing back all I get is black screen with play movie and chapters. All the menu and title bars are gone.

Cant seem to drag or see mp4 files

Why is the estimated file size is over four times the source?  Source MP4 is 730 MB, but the estimated once imported is close to 4 GB.

I have downloaded Blu-ray Creator for Mac and when I look at the User guide the interface that the software I downloaded is nothing like the one in the guide with far fewer options - am I missing something?

I am trying to download the trial version of the Blu-ray creator, but when I try to open the app it says the it is damaged and that it should be removed.

Using imElfin BR Creator v. 7.4.00 to try it out and see if this program is worth buying.
I have made an ISO file from a number of episodes of a TV serie with the idea of burning a BR disc.
Have added separate subtitles (Dutch).
All went well but checking the ISO afterwards (before burning the BR) I found that the following was added in front of every sentence of the subs : ,0,0,0,, This is annoying to watch. It happened as well with other files and subs. When I played the same files and same subs on my Mediaplayer, the additions were not there. Anyone ??