How do you put videos that you already have in your computer into iTunes? (Please answer!)?

Well, go to File > Add File to Library, then browse for your video(s)

Or use shortcut Ctrl + O and browse for vids.

It depends on which music store you brought the videos from. And if they are videos made by you, they may not work unless they were made with the apple software iMovie Maker. Because everything that invoves the iPod is synchronized with all of Apple's software.

You guys are all wrong. I cannot believe that still a lot of people don't know how to do it. PLEASE go to http://ipodforums.co.nr/ and register then go to the FAQ forum so you can learn exactly how to take movies and put them on an iPod. It starts all the way from scratch when you have ordinary videos and shows you what you have to do to get it on the iPod. But please register or else you cannot see the forums.

You use the USB and click save to iPod on the video.