I recorded a video of 14 mins. The camera splitted it into to files that I uploaded to commons. It is still one video and should be played contimously as one video:
https://commons.wikimedia.org/wiki/File:Berlin_Pride_-_Save_our_Community,_Save_our_Pride_01_of_2.webm
https://commons.wikimedia.org/wiki/File:Berlin_Pride_-_Save_our_Community,_Save_our_Pride_02 of_2.webm