That all depends on if you want to pay, by that I mean, buy, software. Used to be that iDVD would work fine, especially for burning dvd movies. You could have added a fancy menu screen with a snapshot from the movie you wanted to burn, or animated stuff if you wanted to get cute, but I'm sure that iDVD works with Mojave anymore. It used to work with Sierra, and back in the day,
Apple threw in a copy, along with the iWork suite, for free. Apple doesn't do that anymore. iDVD may be available in the App store but I haven't checked for a few years, as my optical drives have all gone kaput. there's "Burn" which is free (maybe donationware) and that can burn movies, and NTI Dragon Burn. There are a bunch of applications out there which will burn movies and let you add fancy menus and stuff, but they are pay. About the only other one I've had experience with is Roxio's Toast which burns pretty much anything/everything to disk, even, if you wanted to spend extra to do that, Blu Ray's.
About the only other thing I could say which might be helpful would be to be picky when choosing the type of blank dvd to burn. Verbatim and Taiyo Yuden work just fine. Maxell and Sony do not. As to why this is, I don't know.
john b