iPhone video to DVD

A friend took a video on his iPhone and wants a dvd version so he can play it on his dvd player hooked up to his tv.

Is there free or inexpensive software (reputable) to do this process? I am assuming I can get a dvd-burner.

Perhaps this – though, much like other DVD authoring software, it has not been updated in a while.

https://www.dvdstyler.org/en/

Thanks. I’ll check that out.