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ROM4 Format Specification

Blu-ray Disc Read-Only (ROM) Format Version 4

This version was defined in August of 2015, for Ultra High Definition Movie Contents. The special features of this version are adoption of BDMV featured 4K resolution Video and HDR(HighDynamicRange) and BD-J, capable of newly defined Dual layer 50/66 GB and Triple layer 100 GB Read-Only media also usage of UDF2.5 as file system for PC friendly.

Current Format Books

System Description Blu-ray Disc Read-Only
Part 1: Basic Format Specifications Ver. 2.0 May 2015

System Description Blu-ray Disc Read-Only
Part 2: File System Specifications (UDF®) Ver.2.0 Apr. 2015

System Description Blu-ray Disc Read-Only
Part 3: Audio Visual Basic Specifications Ver. 3.2 December 2017

Online Certificate Revocation List

The latest Online Certificate Revocation List, as issued by the BDA-CA, is available for download below. This file is created in accordance with the data format described in the BD-ROM Part 3 Specification.

For more details on the Online Certificate Revocation List please consult the BD-Live Logo License and Online Certificate Issuance Agreement and the BD-ROM Part 3 Specification.

Online Revocation List
Updated August 08, 2008