X.3 Media Formats
Prev | X 120 mm BD Medium (Normative) |

## X.3 Media Formats

### X.3.1 Blu-ray Disc™

#### X.3.1.1 BD Physical Format

The physical format of BD media shall comply with one of the following applicable definitions:

- Blu-ray Disc™ Association. White Paper Blu-ray Disc™ Format 1.A Physical Format Specifications for BD-RE (2nd Edition, February 2006).

- Blu-ray Disc™ Association. White Paper Blu-ray Disc™ Recordable Format Part 1 Physical Specifications (February 2006).

##### X.3.1.1.1 BD Sector Format

The sector format of BD media shall comply with one of the following applicable definitions:

- OSTA Universal Disk Format Specification (UDF) Version 2.5. April 30, 2003.

- OSTA Universal Disk Format Specification (UDF) Version 2.6. March 1, 2005.

### Note

BD-RE is a truly random access medium, providing random access to fixed length sectors, hence no multi-session is applicable and packet-written format is not necessary.

#### X.3.1.2 BD Logical Format

There are no requirements, restrictions, options or extensions to the logical format that are specific to this media type, beyond those specified in Section X.2.

#### X.3.1.3 BD Physical Media

The physical medium shall be the 120 mm BD medium as defined in one of the following:

- Blu-ray Disc™ Association. White Paper Blu-ray Disc™ Format 1.A Physical Format Specifications for BD-RE (2nd Edition, February 2006).

- Blu-ray Disc™ Association. White Paper Blu-ray Disc™ Recordable Format Part 1 Physical Specifications (February 2006).

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