Unsupported Formats
See the Video Formats page for more information about the types of video files we accept.
Large Files
Our standard file upload limit is described on the Time and Size Limit page. Some channels accept larger files, although uploading huge files may present a problem for users with slow network connections.
Compound Files
Some video editing tools, such as Final Cut Pro or iMovie, can create "compound" or "reference" files, in which a small master file dictates which elements of one or more larger "source" files should be played. To upload these movies, you must first "flatten" them using the "save as" or "export for web" commands.
