How can you sync video files with your sony walkman NWZ-S616F mp3 player?

If you download iWisoft Video converter which is a free download then there is an option to convert video files to a walkman supported format. It takes about as long to convert as the video file actually is. Once its converted then just find the file in your documents and copy it directly to your walkman. There is no need to use Windows Media Player or anything. Easy.