[Shelley_c]

It's a very simple technique that you can do by using a pixelated font, masking (if your shaping the object) and implementing the animation so the text scrolls up and down. I did this kind of effect on some IPB buttons 3 years ago and they looked crap then as does the technique does now.

Just google matrix photoshop tutorials and you'll find an abundance of ways to create this technique and with the added bonus that it's easy to integrate into your works (buttons,banners, logos etc). I'll need to fish out the buttons and show you how crap this technique looks.