The answer to looping video on an iPad for kiosk display is a moving target because of the many versions of hardware, software and third party apps. After digging - a lot - here's what I found for the iPad 128Gb, iOS 7. Similar for iPod Touch 4G. November 2013. (I'm using Windows at the moment but the Mac I use is not much different in this.) See if it works for you.
Make your video iPad compatible. (There are lots of options. I use a conversion program like Handbrake.) (.MP4?)
Open iTunes on your PC, drag the video file into the iPad Movies folder in iTunes. When it is loaded, iTunes will call it a Home Video. So, if you don't see under Movies on your iPad, click the Home Video tab.
Right-Click On the filename.
Get Info.
Options.
Change the Media Kind to Music Video so that the Music will recognize it for a play list.
(Don't panic! The video will vanish from Movies AND Home Videos but will show up in Music on the desktop or under the Music Videos tab on the iPad.)
Create a Music Video Playlist.
Loop it. Play it.
Attach it to a big screen.
Message was edited by: randsmyth