If you’re asking whether you need a special recorder…yes you need a blu-ray recorder or computer drive. And those prices are huger!
If you asking if long movie on blu-ray movie fits on 4 DVD-DL discs, I guess that’s about right, depending on the specific discs. But I don’t think you get the same “menu features” if you do that. Maybe there is a way to do it with a computer program, I dunno.
If you are trying to burn a blue-ray movie you bought, you might have difficulty if you’re asking this question. I hear the copy protection is good so you would need technical skills to break it. But I’m sure it can be done. HD-DVD was a lot easier. Proly one reason why it lost the format war to the movie studios. Who knows.