be sure to register the video filetypes on your server. If you don't have access to that (on apache for example), add this in the .htaccess in the root folder: AddType audio/ogg .ogg AddType video/ogg .ogv AddType video/mp4 .mp4 AddType video/webm .webm the script expect the videos to be in /uploads folder ($UploadDir = "./uploads"; in local/config.php)