Because this name is specific to a single file on a particular device or cloud storage account, there is no public information or "write-up" available for it. These filenames are typically created automatically to ensure that no two files have the same name.
To help me give you the information you're looking for, could you clarify: DC1B5E63-CD76-494E-B1E6-72BF1129E413.MP4
(e.g., in a news article, a specific social media thread, or your own files?) Because this name is specific to a single
(e.g., a specific event, a tutorial, or a viral clip?) Which platform or website did you find this file on? The filename appears to be a unique identifier
The filename appears to be a unique identifier (UUID) generated by a device, such as an iPhone or a digital camera, rather than a known public video with an established "write-up."