I know I've done this before. Convert an mp4 video to an mp3 audio from the Advanced menu in iTunes. (It's how I created the ringtone on my phone) But the option is greyed out now. Anyone know what's ...
If you are unable to open an MP4 file on our media player, try changing the video format. There are many good video converters available on the internet that can help you convert your MP4 to MP3, AVI, ...
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