0ha78h2aa6zl9xhrorfhs_source.mp4

: If you recently did a "Google Takeout" export, this file is likely part of a specific album or year folder.

: Look at the "Date Created" in your file explorer; this often matches the day the video was originally filmed. 0ha78h2aa6zl9xhrorfhs_source.mp4

: If your standard player won't open it, VLC Media Player is excellent for reading files with unusual naming structures. : If you recently did a "Google Takeout"

If you found this on your hard drive and aren't sure what it is: If you found this on your hard drive

: The _source suffix usually indicates this is the raw, uncompressed file as it was first uploaded to the cloud.

: Since these strings are unique to individual user accounts, the video is likely a personal recording—perhaps a family moment, a vacation clip, or a saved mobile video.

This filename, , follows the naming convention of a temporary or source file generated by Google Photos or Google Takeout .