Why MP4 Moives Can't Be Recognised with iTunes , iPhone 4S and Even Samsung Galaxy S3

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The Tool we used for re-code mp4 movie in this video [Windows Version] http://www.leawo.com/leawo-video-converter/ [Mac Version] http://www.leawo.com/free-mac-video-converter/ Why MP4 movie can't be recognised with iTunes, iPhone 4S all of a sudden? but we can add a mp4 movie on itunes and play mp4 movie on iPhone 4S or even the new phone Samsung Galaxy S3 well before. Yeah, the same type format like mp4 is supported with many devices, however, if this mp4 file's codec is not supported with the devices, the devcies will be also not support this mp4 file, so in order to make itunes, iphone 4S and Samsung Galaxy S3 recognise thie mp4 movie again, we need to re-code this mp4 file. And this video is just the method of how to solve the problem of why our mp4 movies can't be played on iPhone 4S ,Samsung Galaxy S3 or other devices, and even can't be added to itunes library. Follow me with methods like below My facebook: http://www.facebook.com/leawo My blog: http://www.leawo.com/blog/ My twitter: http://twitter.com/#!/Leawo_Software