Most likely, your MP4 files are already added to iTunes 12 to “Home Videos” under “Movies” category in stead of to “My Movies” under “Movies” in iTunes. Situation 1: Your MP4 files have already been added to iTunes but you cannot find them in iTunes. Situation 3: You Download and Convert Video from YouTube or other online videos to MP4 but cannot import to iTunes.Situation 2: Your MP4 files are not added to iTunes at all.Situation 1: Your MP4 files have already been added to iTunes but you cannot find them in iTunes.Two different situations are brought depending on the format of your MP4 files.

Not only the latest iTunes 12, the earlier version iTunes 11 also has the same issue. No matter you drag and drop to add MP4 to iTunes or import MP4 to iTunes via “Add File to Library” from “File” menu, the MP4 video, movie or TV shows do not appear in “My Movie” or “TV Shows” in iTunes. After updating iTunes to iTunes 12 (iTunes 12.12 included), it seems impossible to add MP4 to iTunes.

Cant open mp4 on mac