MP4 not going onto my iTunes (iMac Yosemite)
I have a video sent to me by someone using a windows computer (.mp4), and it wont let me drag and drop this into my iTunes like I can do with all other .mp4 files I've ever come across, if anyone knows why, or how to fix this it would really help. I've managed to view the video in VLC but I would like to put it on my iPhone, and as far as I know VLC doesn't have that option.
Thank you.
iMac, OS X Yosemite (10.10.2)