7363-br720p-subs-howtotraindragon3.mp4 -

: The file container format, which is universal and works on almost any device (phones, TVs, computers). The End of an Era: A Look at The Hidden World

: This confirms that the file includes subtitles , which are either hardcoded into the video or included as a selectable track. 7363-BR720p-SUBS-HOWTOTRAINDRAGON3.mp4

: Short for Blu-ray . This indicates the source of the video was a high-quality physical disc. : The file container format, which is universal