macprovideo and N.E.D. question

Hi,
I bought a series of videos from macprovideo, and it appears that the only way I can view them is using the N.E.D. app. Is there a way I can find these video files on my Mac so that I can compress them to put on my iPad? I know I can download the macprovideo app for iPad and download them again this way, but I'd like to compress the files so that they are smaller.

Cheers.