: Launch MakeMKV and go to File > Open files . Navigate into your backup folder, locate the index.bdmv (for Blu-ray) or equivalent file, and open it.
: If multiple titles look identical, choose the one with chapters.
: In the right-hand panel, you can set a descriptive filename (e.g., "ShowName_S07E172.mkv") before starting the rip.
: The software will analyze the backup. Look for the title that matches the length or segment map of the episode.