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The maximum allowed bitrate in 2K or 4K DCP is 250Mbit/s or ~31.2MB/s. This would mean that into a film in 2K 1.85:1 FLAT 1998x1080 the picture will use 243Mbit/s or ~30.3MB/s and the 5.1 surround sound will use 6.91Mbit/s (~0.9MB/s).
The final size of a DCP is related to the bitrate of the source file. For example: A film with a duration of 10 minutes 2K 1.85 FLAT, at 250Mbit/s, 5.1 sound, will have a file-size of about 18.2GB. With the same specifications, a film with a duration of 100 minutes will have a file size of 182GB. The same duration film in 4K would result in the same file-size DCP since the bitrate remains constant at 250Mbit/s and the only thing that changes is the compression factor. The actual final size of a film may differ since the compression of each frame is done in a Variable bitrate in JPEG 2000 codestream, not Constant bitrate as the examples above. High bitrate SMPTE DCPs are still exmperimental. Yes, it is possible. In most cases, common computers at home will not support real-time playback. Be aware of the color space transformation process, otherwise colors will be inaccurate or completely off. EasyDCP Player is a great tool but only for 15 seconds of playback. NeoDCP is also an option. Davinci Resolve Studio 17 is great but keep in mind that Davinci does NOT read timed text files (such as open subtitles) and supplemental DCPs.
In any case, we recommend a proper screening in a D-Cinema. We make films for live audiences and cinema venues! If you have in hand a CRU disk or a USB flash with a DCP ready to play in Digital Cinema, formatted in EXT2/3 file format please don’t connect it to a conventional PC. There are software applications, such as MacFUSE, extFS for Mac, or extFS for Windows that are buggy and may destroy the file structure! Be carefull. We recommend connections faster than 10Mbit/s for upload and download.
For example, a 20GB file at 5Mbit/s transfer speed needs 10 hours, the same file at 10Mbit/s transfer speed needs 5 hours, and 100Mbit/s needs only 30’ minutes. Each DCP is delivered in the form of a verified ZIP file and the link is sent to you by email. The is a safe method to transfer files through the web. We suggest you download the files via the secure app “Filemail app” available for windows, mac, and Linux or via the FTP client “Filezilla app”. Why ZIP?
Before uploading or downloading DCPs or KDMs to or from FTP-Servers, the DCPs and KDMs should be zipped. During the upload or download process files that are stored in ASCII format – such as the XML files like Packing List (PKL), Composition Playlist (CPL), or Key Delivery Message (KDM) – could be altered by transfer errors and correspond in different ASCII characters, resulting in errors during DCP ingest or playback. Some FTP-Servers change line feeds or tabs resulting in bad signature hash values. Mac and Windows often use different line feed in text files. To prevent this source of errors before transferring such data all files should be zipped before the transaction. You should zip files for E-Mailing, too. If any errors occur during the file transfer, the zip file will fail to unzip. This is the way to know that your sensitive files (DCPs or any other digital file) transferred correctly. You should unzip the file to be sure that it is error-free. You could also use as an alternate method the open-source application https://quickhash-gui.org/ in order to calculate the MD5 hash of the ZIP file. Compare this hash with the hash that we include in the e-mail text containing the link to make sure that they match. If the two files have even one different bit then, calculated hashes will be differnet. For example: source MD5 hash calculated in our system: 61247FEAB6A47C69BCBF5863275FC125 target MD5 hash calculated in your system: 61247FEAB6A47C69BCBF5863275FC125 Source hash matches target hash! Using Cloud Storage, you can easily transfer your film at a low cost in most festivals and cinema venues around the world. It is a reliable and modern solution with a lower cost than mailing the physical media through courier services. You can simultaneously support multiple cinema venues which is not possible with a physical medium. It is also a covid-free solution.
Each DCP is delivered in the form of a verified ZIP file and the link is sent to you by email. This is a safe method to transfer files through the web. We can deliver your film via Aspera, upon request. Select one of our packages. CRU is a rugged removable hard drive carrier for digital movie distribution. CRU is the industry-standard drive format. It is durable and has the widest compatibility with Digital Cinema Equipment. Ingest time at the DCP server is usually the fastest. Unlimited number of DCPs on the same CRU disk.
Our kit includes: 1TB CRU drive HDD, EXT3 file format, DX115 carrier, Hard case with foam, Custom front label, Printed A4 detailed lab report, Digital Cinema ingest ready. Physical medium preparation time is 3 to 7 working days. Masks and gloves are mandatory for physical shipping items. Our kit includes: USB flash 64GB, EXT3 file format, Peli micro case 1010, Custom front label, Printed A4 detailed lab report, Digital Cinema ingest ready. Physical medium preparation time is 3 to 7 working days. Masks and gloves are mandatory for physical shipping items.
USB flash is available for films up to 30 minutes. You can deliver your film digitally through Cloud Storage link or through FTP Server. There is also the option of a physical medium such as CRU or USB flash.
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