Water Walkers.To play a music or video files on a mobile device, you need to download it to online storage like DropBox, Google Drive and One Drive. Then you can play that file with your media player app that you have installed on your mobile device. On desktop and laptop computers I use VideoLAN (http://www.videolan.org) which plays anything that you throw at it with many extra features. VideoLAN is 100% free and download are available for all devices. The best for playing media files.