Thanks to features like Picture-In-Picture, BD-Java, and multiple video formats and resolutions, just figuring out what files you need can be a daunting task if you have never done it before.
Making things even more complicated, there is no single, all-purpose tool like DVD Shrink for Blu-ray discs.
In our guide for Extracting Content From A Blu-ray Disc we break the process down into two steps.
In the first part, Analysis, we cover using BDInfo to analyze various aspects of the playlists (MPLS files) on a Blu-ray disc. Then we explain how to use Media Player Classic - Home Cinema to preview titles to help you decide which ones you want to keep.
In the second part, Extraction, we show how to use MeGUI's HD Streams Extractor tool to extract video, audio, subtitles, and chapters from the titles you have identified using BDInfo and MPC-HC.