JCB accepts the following type of video submission: video plus text commentary (3,000-5,000 words)

For video files to be embedded within an article, we recommend the following:

  • Preferred file format for video is .mp4
  • Video frame size must be a minimum of 640 × 360 pixels and a 16:9 aspect ratio is recommended.
  • Embedded multimedia files should be kept below 500MB file size. Remember that academic content is accessed from around the world, and many users do not have the bandwidth to easily view a large file size. 500MB is also a recommended limit for social sharing. A number of factors contribute to the size of the video: the definition, expressed as the pixel ratio (e.g. High Definition is 1920 x 1080, based on an aspect ratio of 16:9), the bit rate (bits per second, bps), and the video length and content, e.g. if a background musical soundtrack is included, this increases the overall size of the video. We recommend that creators create high quality versions of their videos and make a compressed copy of them for submission. Just remember that whilst files can be compressed, this can only be done to a degree before losing quality, so it is useful to be aware of the final parameters from the outset.
  • Video length – Evidence has shown that the shorter the video, the better, in terms of engagement and views. Videos should be a maximum of 10 minutes in length.
  • Creators should note that Video articles are subject to the same requirements as text articles, that is, creators are responsible for ensuring submissions are original and that they have the necessary consents and permission for the use of any third party material.

Permissions and Third Party Material

Creators are reminded it is their responsibility to check and provide the appropriate permissions for the use of third party material in the publication of their content. If creators used any third party material in their video, this needs to be included in a reference list at the end of the video along with the necessary permissions information. Even if creators use something that is available via a Creative Commons licence, this should be referenced and acknowledged as being reproduced under that licence. If creators used any third party material under the auspices of fair dealing, fair use or the creators’ own country equivalent, this material must also be included in the reference list. We suggest that at the end of the reference list the creators included a statement to acknowledge this.

Once the video is accepted for publication, the creators will be invited to submit the complete final file including credits. Creators should provide the reference list from their video in text format so that this can be provided as a supplemental file. The creators should also provide a high-resolution still image from the video which will be used to illustrate the video in the hard copy version of the paper, or for social media use. This would normally be a still image of the title screen of the video. Creators will be asked to sign a bespoke copyright assignment form. Current JCB Policy is that videos are published under a Creative Commons licence, and creators should note any specific requirements when getting permissions which may impact which CC licence is appropriate.

Transcripts and Accessibility

Once the final version of the video has been received, this will be sent to a third-party provider to provide a full transcript, captions, and an audio-described version of the video to maximise accessibility.

  • Full Transcript – this is a time-stamped text file which included the captions and the transcription of the audio and subtitles from the video.
  • Captions – Captions are different from Subtitles in that they include descriptions of noises in the video, e.g. [music playing]. The Captions display on the bottom centre of the video, but are also set up to automatically move to a different location on the screen if the video has subtitles and the Captions would interfere with these.
  • Audio-Described version of the video – based on the full transcript, synthesised speech is used to narrate the video for visually impaired users. We have chosen to have a specific version of the video with the audio description included, which meant that the user can listen to the video and the narration simultaneously and the video will pause when necessary to allow the narration time to describe what is happening when there were not sufficient gaps in the soundtrack.

All of the above items are full editable and creators are given a proof to check and amend if necessary before the files are finalised for publication.


Creators will be sent a final proof of the hard-copy version of their paper to check. Transcripts and Video reference lists will be published as supplemental material to the text content.

JCB has its own Vimeo channel to host the Captioned and Audio-described versions of the videos, and links to these are provided from the online version of the article. As these play in the Vimeo player it is possible for users to turn Captions on or off, and also to select the resolution they wish to watch the video at.

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