Tag: Digital Cinema Naming Convention
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Quality and kind of hard disk are not important but it is recommended to use a powerful interface, e.g. eSATA or USB 3.0. Commonly, carriers from the CruDataPort series are used.

The file-systeme is very important. According to DCI specification EXT2 or EXT3 is required. These file systems are supported natively by LINUX. 
Third party drivers/emulations are available for MAC and Windows, but we know from some customers that they had problems with the Windows drivers. It is recommended to install a LINUX system either on a remote or virtual system and have it share the mounted DCP via SAMBA.

The time it takes to copy a DCP onto a mobile hard-drive depends on the DCPs size and on the bandwidth. A 90-minute DCP can take up to 200 GB.

It is highly recommend to verify the DCPs integrity.  To do that, you can start the DCP validation (included in easyDCP Creator+ and easyDCP Player+) and run a Hash-check (e.g. with MD5) of the DCP before copying to the hard disc. After copying run the Hash-check again. The results of the hash-check must be identical otherwise the DCP may crash.

This extra work is in no relation to later exchange of the DCP in the cinema. 

Copying needs to be done independently from the easyDCP application, e.g. with Finder or Windows Explorer. Also professional mass-duplication software is available and convinient for larger copy batch jobs.

Additional hint: Using of Digital Cinema Naming Convention is higly recommend to ease the workflow in the cinema server. Create correct syntax of Digital Cinema Naming Convention is embedded in easyDCP applications. 

 

Imagine the following situation:

  • The original version (OV) of a DCP or IMF package has already been delivered to the cinema or studio
  • Now certain frames need to be replaced (here: video frames from #280 to #329 of reel #1)
  • The delivery should be a smaller supplemental package that only contains the new frames

HINTS:

  • The usage of supplementals is very similar for DCPs and IMF packages
  • The replacement of frames is very similar for video and audio

To replace certain frames in a DCP or IMF package, just follow these steps:

1. Load the DCP or IMF package in easyDCP Creator+.

2. If you want to create a supplemental package, right-click on a track and choose "Supplemental > Enable for all Tracks":

Info: All tracks should be greyed out now, which means that they are just referenced and not included in the new supplemental package:

3. Move the playhead to the first frame you want to replace (here: frame #280). Then click on the scissors to split the reel/sequence:

Info: A reel should automatically be added to the composition (here: reel #2).

3. Now move the playhead to the next frame after the last frame you want to replace (here: frame #330). Then click on the scissors to split the reel/sequence:

Info: A reel should automatically be added to the composition (here: reel #3).

4. Add your supplemental frames as a new track and drop it onto the reel that contains the frames to be replaced (here: reel #2):

5. Don't forget to rename the composition according to the Digital Cinema Naming Convention (here: creation date and package type "OV" to "VF-1"):

6. Generate the new package.

The result is a DCP or IMF package with a new composition that replaces the desired frames. In case of supplemental, please note that a supplemental package is not self-contained, which means that it must be loaded together with the OV track files in order to play correctly.

Hint: If it becomes necessary to create another Supplemental DCP / IMP, load the Supplemental DCP / IMP that has already been created and proceed on the basis of the previously created Supplementals exactly as you have done before.
For later use in the cinema or Netflix both Supplemental in the correct order are necessary. The naming convention provides for consecutive numbering VF-1, VF-2 and so on.

Please note: Supplemental packages are only supported in easyDCP Creator+.

This FAQ is valid for
easyDCP  from Version 3.X

 

Easier & faster packaging:

Rename DCP files with easyDCP Creator+

 

Imagine the following situation:

  • Your DCP has already been packaged and works flawlessly. However, the file names of the DCP do not meet the requirements of the cinema / studio - namely, content title and reel number are missing.
  • Now the files shall be renamed so that they contain the DCP’s content title, its reel numbers and are therefore human readable.
  • The conversion should be done quickly, easily and without any time-consuming re-encoding.

 

Tipps:

  • The use is very similar for DCPs and IMF packages.
  • Also works with the standard version of easyDCP Creator.
  • All presets can be used for new projects as well.
  • Warning: Do not manually alter any DCP, since this will break its internal DCP structure.
  1. Your DCP is e.g. in the following file structure (the root folder already contains the movie title, but the movie title is missing in the individual DCP files and are not human readable):
  2. To customize the filenames of your DCP, first open your DCP with your easyDCP Creator+. Then select the “Custom” preset under "File > Options > File Naming":
  3. In the right-hand pane, under "Usage", the available DCP name components are listed as placeholders (% 1,% 2,% 3, ...). Now use the placeholders to create your desired DCP file names by typing the placeholders in the desired order in the Metadata Files and Track Files text boxes. In this way, you allow the easyDCP Creator+ to inherit the components of the DCP to the file names. Check your settings in the instant "Preview":
  4. Finally, save your DCP via "File > Save Package". The files of your DCP are immediately renamed in-place and re-signed. The file names of your DCP now contain the DCP components you specified (here: the movie title, a half UUID and the respective acronym):




Please note:
This template was created with easyDCP Creator+ Version 3.6.4. Previous versions may not yet include this feature, but in newer versions the process may be slightly different.


JPEG 2000 files generated with the easyDCP Creator meet the required requirements.

You can also import pre-generated JPEG 2000 files. Make sure that the input format "Option", the entry "JPEG 2000 Re-encoding" is disabled. In this case, easyDCP Creator does not check if these files are compatible with current standards. The software merely copies the files to the DCP.

This may eventually lead to a rejection of the DCP by certain playback devices / digital cinema servers. In such cases, we recommend checking the entire DCP with the DCP validation function of easyDCP Player + or easyDCP Creator +.

Currently, we are not aware of any problems with DCPs that are generated by easyDCP Creator.