well first thing first, I haven’t tried it yet, just saw it posted on videohelp.com. I though some people here might be interested in trying it out.
Simple GUI to shrink a Blu-ray with all menus and extras using x264(H264 video). Backup Blu-ray to for example a DVDR(4.3 or 7.95GB) or a BDR(25GB). Requires ffdshow and avisynth. This is not a DECRYPTER, use AnyDVD for Blu-ray decryption.
http://www.videohelp.com/tools/BD_Rebuilder
NEVER MIND - SEEMS TO BE POSTED ALREADY, DELETE IF NECESSARY