Digital Cinema Initiatives

DCI SYSTEM REQUIREMENTS AND SPECIFICATIONS FOR DIGITAL CINEMA

DCI Specification, DCSS Version 1.4.2

Digital Cinema Initiatives, LLC (DCI) has published a new Version 1.4.2 of its Digital Cinema System Specification (DCSS), dated June 15, 2022.

DCSS VERSION 1.4.2

DCSS Version 1.4.2 includes revisions and refinements respecting Object-Based Audio Essence (OBAE), also known as Immersive Audio Bitstream (IAB). Version 1.4.2 also implements post-show log record collection utilizing [SMPTE 430-17 SMS-OMB Communications Protocol Specification]. Figures in the DCSS have also been refreshed.

Furthermore, DCSS Version 1.4.2 incorporates two prior addenda into the DCSS: [Digital Cinema Object-Based Audio Addendum, dated October 1, 2018] and [DCI Stereoscopic Digital Cinema Addendum, Version 1.0, dated July 11, 2007]. Users will no longer need to refer to these separate addenda.

The DCSS 1.4.2 is available as an online HTML edition and as a PDF file. The PDF version contains pagination and includes page numbers whereas the HTML version does not. The PDF version is considered the definitive instance of the Digital Cinema System Specification, Version 1.4.2.

There is also a redline version that compares DCSS 1.4.2 to DCSS 1.4.1, showing additions and deletions. The redline is available in an online HTML or PDF edition. Future DCSS revisions will modify the DCSS Version 1.4.2.

DOCUMENT LINKS

A permanent link to the HTML edition of the DCSS, Version 1.4.2, is:
https://dcss.dcimovies.com/0c0cff34d231b516cb89ae3fad352d5cf37a9515/dcss.html

A direct link to the PDF file of the DCSS, Version 1.4.2, is:
https://dcss.dcimovies.com/0c0cff34d231b516cb89ae3fad352d5cf37a9515/dcss.pdf

A permanent link to the HTML redline of DCSS 1.4.2 and DCSS 1.4.1 is:
https://dcss.dcimovies.com/0c0cff34d231b516cb89ae3fad352d5cf37a9515/dcss-diff.html

A direct link to the PDF file of the redline of DCSS 1.4.2 and DCSS 1.4.1 is:
https://www.dcimovies.com/specification/DCI_DCSS_v141-to-v142redline.pdf

ADDENDA

These two addenda are supplements and integral to the DCSS.

DCI has released updated versions of the DV Addendum and the HDR Addendum. Changes against the 1.0 versions of those two documents are available as redline links below.

• DCI High Dynamic Range D-Cinema Addendum, Version 1.1, dated 1 March 2023
  • HTML: DCI High Dynamic Range D-Cinema Addendum (HTML)
  • PDF: DCI High Dynamic Range D-Cinema Addendum (PDF)
  • REDLINE: DCI High Dynamic Range D-Cinema Addendum Changes against v1.0 (REDLINE)
    
• DCI Direct View Display D-Cinema Addendum, Version 1.1, dated 1 March 2023
  • HTML: DCI Direct View Display D-Cinema Addendum
  • PDF: DCI Direct View Display D-Cinema Addendum (PDF)
  • REDLINE:DCI Direct View Display D-Cinema Addendum Changes against v1.0 (REDLINE)

Errata for the Digital Cinema System Specification (DCSS), Version 1.4.2

Errata items continue to be evaluated and will be posted after agreement by the DCI membership that the specific erratum needs to modify the DCI Digital Cinema System Specification, Version 1.4.2.

Suggested Errata issues may be emailed to . Please include "Errata" in the subject line.