Video compatibility refers to the ability of video files to be played on a specific device or software without issues. When it comes to sports content creation, it is essential to ensure that the video files intended for upload can be played locally on the user's computer. If any of the files do not play in the local player, it can result in upload failures and prevent TeamTV from converting them to the internal format. Checking video compatibility before uploading helps avoid potential issues and ensures a smoother content creation process. It is recommended to use widely supported video formats to maximize compatibility across different devices and platforms.