As for videos, you should use this app to export to Mac first and later import them to i Tunes Library on Mac.
If your i Tunes library disappeared right after you updated it, you should try this method.
✔ If your i Phone devices were smashed, broken or lost due to some accidental reasons, you can retrieve contacts from i Tunes backup i Cloud backup.In "Previous i Tunes Libraries" folder in i Tunes folder, drag the latest i Tunes file which named as i Tunes Library Copy it to the folder in step 2 where you find the i Tunes After replacing the broken i Tunes file with an older one, you can see your missing i Tunes Library is back.You suddenly lost your i Tunes library after an i Tunes update or maybe the i Tunes library on your new PC is empty? If you already have the songs and playlists loaded on an i Pod or i Phone, you’ve come to the right place."Before updating to i Phone i OS 10, I backed up settings and contacts on i Tunes (I currently have i Cloud off).
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