Thanks Kayelle. I loaded all the software that it came with. Yeah, I didn't see any that converted Real Player either. I found one you could buy on the internet for $30.00 that does. The only converter I've used that came with the Zen, converts files that are too large to play normally. It shrinks them.
The one video I can think of off hand that was giving me the Codec error is "Fly" by Sara Groves (by Shellyem). When the converter tries to convert it, it errors out. So I looked at the details before trying to convert it again and it pops up an error saying it is trying to use Codec 2 and my player can only use Codec 3.
But I just got my player yesterday so maybe I haven't looked at the software enough yet.
Yeah, it's awesome! Love it!