Hello my little jungle friends...or to my mac user friends. I found this great dvd ripper program. What is it you ask? Well if you have to ask that then I'm probably not going to be able to help you much but...basically you can copy dvd's to your harddrive in mp4 format. This means you can put videos on your ipod or other portable media device. This also means that you can edit movies in imovie. So for those teaching or message clips you can edit what you want and leave the rest. No cuing dvd's or anything that.

Media Fork

and if you have Pro Presenter- which I recommend for any mac user, you can just import the video like usual.