I have done a lot of stories of photos without any problem adding music from my computer. Suddenly, he keeps saying I'm not the election of a valid music file. I do not know what to do. These are the CD's songs I downloaded on my computer, songs bought from iTunes, etc. Can somebody let know me how to re-structure my music file as a result that it is a "valid" file? Please help me to solve this problem. I am waiting for your replies. All replies are appreciated. Thank you.
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