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R1 Format Specification

This version was defined in 2005 as twin formats with BD-RE Version 2, not only for broadcast recording of High Definition TV, but also for PC recording/playback. The special features of this version are usage of UDF2.5 for file system for PC friendly. Also, BDAV* is defined for audio/visual application format. BD-R Version 1 Part 3 is the same book as BD-RE Version 2 Part 3.


BD Audio/Visual signal stream, based on directory name of file system. This version is not included BD-J.

Current Format Books

System Description Blu-ray Disc Recordable

Part 1: Basic Format Specifications Ver.1.40 November 2017 Including System
Description Blu-ray Disc Hybrid Format Ver. 1.11 (Part 1) Sep. 2012

System Description Blu-ray Disc Recordable
Part 2: File System Specifications Ver.1.1 Oct. 2007

System Description Blu-ray Disc Rewritable
Part 3: Audio Visual Basic Specifications Ver.2.2 December 2016