Syncing videos from Macbook Pro to Ipad

A long time ago i purchased some DVD's that came with digital copies. i put those copies on to my iPad and everything was fine. Today i go to plug in my iPad and the videos are gone.

I go to re-sync the videos and every time is tells me that it can not copy the videos because this computer is unauthorized. i re-authorized the computer and it still says the same thing for all of the movies. I can see the videos under iTunes but can not get them to sync to my iPad.

Anyone else having this problem??