iMovie only has the option to export the film as a .mp4 file. I know that MAGIX can create title cards and menus etc. Is it possible to do the same with Apple Software?
I also haven't found any option to burn the movie file on a DVD other than burn, but that was last updated in 2017
Burn should still work.
There's also the old Apple iDVD & though I haven't tested burning anything with it, it still appears to work on Mojave.
It appears to also still be available from Apple - https://support.apple.com/downloads/iDVD
Macworld did an article on it a few years ago & came to similar conclusions - How to burn movies to disc in an iDVD-less world
They also mentioned Roxio Toast (now up to v17) as a paid alternative
BTW, I can't properly test any of this, as I have no DVD drive except in the Mac. I have to rip bought DVDs to even be able to watch them on the TV ;)
Given the posting date the following may not be the optimal solution – now. But as a general answer to question I recommend to look into the following alternatives:
Apple iDVD is at 7.1.2 from 12 July 2011 and costs quite a stipend for simple yet limited functionality.
For video editing: OpenShot, free, cross platform, version 2.4.3, released 22 September 2018
For creating DVDs:
DVDStyler, free cross platform, last updated Aug 28, 2018
OpenDVDproducer, free, cross platform, version 16.11 released on Nov 16, 2016
