Include display of thumbnails of video files, you can use the program Icaros Shell Extension. You can also do this through the program K-lite by checking the installation. Also, when you install kmplayer can tick to display thumbnails for video files.Video Conversion: https://www.youtube.com/watch?v=kPTmm49-vckReview of media players: https://www.youtube.com/watch?v=rUEbflipxRo