Check the link below, and try downloading the app that Tony recommends and then try again.
http://community.wdc.com/t5/My-Book-Live/is-there-a-media-player-for-iphone-ipad-that-will-play-video/m-p/398927/highlight/true#M11202
Check the link below, and try downloading the app that Tony recommends and then try again.
http://community.wdc.com/t5/My-Book-Live/is-there-a-media-player-for-iphone-ipad-that-will-play-video/m-p/398927/highlight/true#M11202