SWF is a file format used for multimedia content such as animations and interactive applications. It was developed by Adobe for use with the Flash Player plugin. SWF files are commonly used in web design and online games but have become less popular due to the discontinuation of Flash support.
WMV is a video format developed by Microsoft, optimized for Windows devices. It offers good video quality at relatively small file sizes. While WMV is widely supported on Windows systems, it’s less compatible with other platforms, making MP4 a more universally accepted choice for video sharing.