Obviously I won't share where I've gotten my files over the years for media but as a physical collector as well, the prices for some bluray collections of things is outrageous and would like to make my own that look somewhat professional. I have a bluray burner and blank bluray discs.
There are many user-friendly Blu-ray burning programs available that can guide you burn blu ray disc. Just make sure you have a compatible Blu-ray burner and blank discs before you start.