Digital Cinema Package (DCP)

A Digital Cinema Package (DCP) is the standard convention accepted worldwide for distributing and projecting movies digitally. Whether you’re planning a film festival or distributing your film to theaters nationwide, DCP provides you with the tools and expertise to master your film with confidence. Using visually-lossless JPEG-2000 compression, DCPs present every frame of your film with clarity in the highest digital screening resolutions.



Submission Guidelines

cueworx accepts the following formats for file-based submissions:

Image Sequences:
  • 16-bit TIFF
  • 10-bit DPX

Quicktime/MXF
  • ProRes 4444 XQ
  • ProRes 4444
  • ProRes 422 HQ
  • ProRes 422
  • DNxHR 444
  • DNxHR HQX
  • DNxHR HQ
  • DNxHR SQ
  • DNxHD
  • XDCAM-EX
  • H.265
  • H.264 (Must be over 20 Mbps; High Profile)

Acceptable Color Spaces
  • sRGB
  • Rec709 2.2 gamma
  • Rec709 2.35 gamma
  • Rec709 2.4 gamma
  • P3 DCI
  • P3 D65

It is the filmmaker’s responsibility to check all source material thoroughly before deliver and specify the color space of their film.

All films where a color space is not given shall be assumed sRGB or Rec709 2.2 gamma

All source materials should be delivered in an RGB target color gamut. Only source materials color timed to P3 DCI color space will be accepted in XYZ’ target color gamut.

Audio:
Discrete channels of 24-bit 48 kHz Linear PCM audio. If delivering as separate files (preferred), please deliver in AIFF, WAV, or BWAV format. We will not accept any muxed or compressed files including AC-3 or AAC files.

Required 5.1 Channel Assignment – SMPTE

  1. L – Left
  2. R – Right
  3. C – Center
  4. LFE – Low Frequency Effects
  5. Ls – Left Surround
  6. Rs – Right Surround
Resolutions
All DCPs are created to fit into one of the following container sizes.

FLAT (1.85:1) SCOPE (2.39:1) FULL (1.9:1)*
2K 1998 x 1080 2048 x 858 2048 x 1080
4K 3996 x 2160 4096 x 1716 4096 x 2160

If your source material does not fit in one of the containers listed above, it will be letterboxed, pillarboxed, or resized to fit.

*The FULL container resolution is the maximum resolution that can be achieved using a 2K or 4K DCI projector. We advise against using this resolution whenever possible as the majority of cinemas do not have pre-sized matte configurations for this aspect ratio.

Framerates

DCI

Universal Compatibility

SMPTE

Modern/Specialty Formats

2K 24 24, 25, 30
4K 24 24, 25, 30
HFR (2K) 48 48, 50, 60
3D 24 24

cueworx handles conforming from dropframe to non-dropframe frame rates (e.g. 23.976 fps –> 24 fps)
We strongly recommend DCI compliance where possible in order to maintain universal compatibility with digital cinema equipment

TAPE-BASED SUBMISSION FORMATS
  • Acceptable Formats: HDCAM, HDCAM-SR, DVCPROHD, XDCAM
  • If submitting 23.98 fps source material with pulldown, only advanced pulldown will be accepted
  • Client must indicate intended aspect ratio of anamorphic material
  • Multitrack audio must be clearly labeled
ACADEMY QUALIFICATION
The Academy of Motion Picture Arts and Sciences maintains strict guideline as to how DCPs must be formatted to qualify for an Oscar nomination.

Translation: Rendering a text into another language. This process does not include editing, so if the source text is problematic, further work could be necessary.

Subtitling: Adding text/subtitles onto a video; can or cannot be turned on or off, process may or may not include translation and hard coding, but includes spotting and synchronizing.

Hard coding or hard-coded subtitles: Etching subtitles onto the video; requires rendering of the video in a video editing program, such as Adobe Premiere, Final Cut, etc. This type of subtitles will look better on the video but they cannot be turned off from a menu.

Spotting: Placing of words/positioning of lines within a subtitle cue, including placement of a symbol (-) indicating the person speaking. Includes the decision of how to distribute words between the two lines (if applicable) in a cue.

(Subtitle) Cue: One or two lines of text shown at one time in subtitles of a video.

Synchronizing: Process of adding time-codes onto cues. Usually follows the translation process unless it is projected subtitles. Then it is done by the operator, manually, during the film screening.

Projected subtitling: Where hard-coding of subtitles is not possible due to the restrictions of the movie format, a projector system is set up in the venue which will project the subtitles onto the silver screen underneath the film. Explanation and photos can be found on our website.

Proof-reading: Checking the translated text for typos, grammatical errors, and aesthetic (spotting) problems.

Editing: After proof-reading; revising, fact checking, checking of sentence integrity and meaning, etc.

Subtitle error checking: [For time-coded files] Checking for time-code inconsistencies and mistakes in the placement of cues. Errors may cause cues to not appear at all or appear irregularly.

Video conversion/subtitle conversion: Conversion of client's video and/or subtitle file into a format that is suitable for the targeted platform or purpose. For example, converting of an Apple ProRes format video onto an MP4 video; or converting of a SubRip subtitle file into an XML file which is needed in digital cinema packages.

What is a DCP (Digital Cinema Package) and how does it differ from traditional film?
Simply put, a DCP is as close to a strip of film as it gets in the digital world. In a DCP, a filmmaker's video track is encoded frame by frame in the robust JPEG-2000 format. This format allows each element of a film to be stored separately in a folder. A Digital Cinema Server utilizes this folder along with other elements to properly project every element of your motion picture on the big screen.

Why doesn't my DCP hard drive show up on my computer's desktop?
Digital Cinema Servers run a variant of Linux OS and as such all DCP hard drives should be formatted Linux EXT3. If you wanted to view the contents of these hard drives, you will need to open the drive on a computer running Linux OS or purchase third party drivers.

Can I watch my DCP on my computer?
Several third party applications exist that will allow you to view a DCP on your computer, but most of them are costly and can't be used to effectively check the quality of your film. The best way to view your film is in a certified Digital Cinema.

Do I need to convert my film to 24 fps before creating a DCP?
The short answer is most likely. While newer Digital Cinema servers are capable of playing back films at many different frame rates, the vast majority of servers can only play content reliably at 24 fps. We advise clients regularly on the best solutions for converting the frame rate of their films and will be happy to assist you too.

The running time on my DCP is shorter than the master I delivered. Did you cut it down?
Digital Cinema deals in whole number frame rates only. Chances are that your film has been cut to an NTSC standard frame rate such as 23.98 or 29.97 frames per second. In this case, we will need to speed up your film slightly to match DCI frame rates in a process called "conforming", which is standard for all films edited digitally. cueworx will never alter the content of your film unless otherwise specifically instructed.

If I wanted to convert my film into a DCP, what is the best format to submit to cueworx?
For the highest quality DCP, we recommend asking your online editor and/or color correction facility to output a DPX or TIFF image sequence onto a hard drive. This is what is known as a DCDM.

What is a DCDM (Digital Cinema Distribution Master)?
A DCDM is a sequence of picture files that corresponds to every frame of your film. It is the last step your video takes in becoming a DCP.

What is a KDM (Key Delivery Message)?
When DCP's are encrypted, they require a special key to open them and this key is encoded into a KDM. KDM's allow you to specify when and what facilities can and cannot view your film and can be sent out at your discretion.

What is a CRU drive?
A CRU drive is a SATA-II hard drive enclosed in a DX-115 hard drive carriage. Originally designed for the military, the DX-115 is now used by the film industry in D-Cinema for its proven reliability and sturdiness. Certain film festivals and facilities require this drive for DCP delivery and it is highly recommended for feature films formatted in 4K, 3D or High Frame Rates.

What is X'Y'Z'?
X'Y'Z' is the color space utilized by Digital Cinema to process color data in all of its images. You've probably heard of RGB and CMYK. These variables represent the way that color is processed in a digital environment. In this case, X'Y'Z' works very much like a Lookup Table when filming digitally. Incoming picture data is compressed into a more finite range of colors allowing the video compression to operate more efficiently and record the image with far greater detail. Viewed raw, the colors appear muted and warped, but when processed correctly the colors appear as intended. It is not necessary to deliver your source material in this color space.

Can you turn my DVD or Blu-Ray into a DCP?
Yes, but we highly recommend avoiding this if possible. To see the full benefits of formatting your film as a DCP, we need to start out with the highest quality source material.

I have a Dolby Pro Logic mix. Is this acceptable?
We will not decode or demux any audio mix and require all sound to be delivered as discrete channels of audio. Please arrange for your sound mixer to generate an appropriate mix for a theatrical environment.

I have read about a lot of free tools for DCP creation. Can't I just make a DCP myself?
Pardon us for not recusing ourselves, but the plain fact of the matter is that the vast majority of these tools simply do not work. From sound dropouts to low image quality to DCPs that simply will not open, the list of woes encountered by film festival managers and theater owners with these tools are consistent and pervasive. More importantly, what may work on one server will very often not work on another using such tools.


DCP Submission Instructions

You may submit your files in one of the following ways:

  1. Upload a file (up to 50 GB).
  2. Paste file url from Dropbox, Google Drive or any other file sharing service.
  3. Add info@cueworx.ca as a collaborator to your files on any file sharing service.
  4. Mail to: 110 Cumberland Street #166, Toronto, Ontario, Canada M5R 3V5