Here, you can download a wide selection of technical white papers prepared by the various Technical Working Groups of the Blu-ray Disc Association. Below you will find several white papers related to the BD ROM (Pre-recorded Movie) format.
BD ROM - Physical Format Specifications - 9th Edition (August 2015)
BD ROM - Audio Visual Application Format Specifications - Version 3 (July 2015)
BD ROM - CMP Export Specifications - Version 1.1 (August 2015)
BD ROM - Physical Format Specifications (December 2012)
BD ROM - Audio Visual Application Format Specifications (Update: July 2011)