Computer software for mobile phones, tablets, portable media players and handheld computers for use in downloading and streaming video materials and for storage and playback of customized video playlists that may be downloaded from a global computer network; Downloadable computer software for mobile phones, tablets, portable media players and handheld computers for use in downloading and streaming video materials and for storage and playback of customized video playlists; Downloadable mobile applications for mobile phones, tablets, portable media players and handheld computers for use in downloading and streaming video materials and for storage and playback of customized video playlists