Then you need these. I got a pair for Christmas to use with my DVD player and other video devices. It has a plug to directly connect to a Video iPod.
The picture quality isn't all that great, but definitely good enough. It simulates a 50in. screen about 5 feet in front of you. Li-ion rechargeable - good for about 4-6 hours of viewing. You do trade full immersion for portability though. They are thin, light, and foldable but when you're watching a movie they don't cover your field of vision enough and outside movement/light/etc. can be distracting. On the plus side of that downside is that I can use them on my treadmill as I have complete vision just by looking down. I can see the treadmill and even the controls when I'm wearing these normally.