Can't transfer movie to itunes?

So, I want to transfer some movie to my iPad mini from my laptop. And for some reason, I can't do it. Well, I used to do it before on my pc, and I just did the converting the video to mp4.It worked well, as all movies are shown in my iTunes and were successfully transfered in my iPod / iPhone.

Now, I use a MacBook Air. And the problem is that I'm using the same technique, well, easier as I only convert my videos from avi / mkv to mp4. But the issue is that I tried to drag my movie to my iTunes and only 1 out of 19 is shown while the others are not transfered for some reason.

Can anyone tell me what's going on? Cheers!

Quagmire? But… I'm quagmire!

I know a easy-to-use yet professional transfer software can transfer the Mac files to any iPad version without loss. Just download 4Videosoft iPad Manager Platinum to have a try.