It was printed clearly on my room key 2 summers ago. 4A/1C it said. Along with my name, resort name, check in and out dates, and our ressie number.
Hope that helps

Sheli
May of 2007 the card read as follows
Dates of checking in and out Adult (my dd said child)
Followed by my name
a big loooong #
Disney Dinning and a couple of letters and #'s
Not valid for charging (didn't want CC on it)
ID#00000000000000000000000000000000000
It was done in this exact format, nothing about the resort we stayed in or anything else.
It looks like a credit card of sorts, (it's flat, no raised #'s) Had Walt Disney World on it at the top of card with a Castle and Tink in the clouds and also said Where dreams really do come true below WDW, then it says in small letters:
Your Key To The World and a phone number next to it. That's it! They put it into a sleeve of sorts, you do want to keep it in the sleeve and keep it away from your camera (the battery de-magnetized it or so they told me) and anything with a magnet such as credit cards. Other wise you'll be going to Will Call getting ticket for the day until you get back to you resort to have them re-issue you a new one. And trust me, you don't want to do this, Ms. Susie Snit will give you the glare that you should have known better. LOL! I'm kidding, I only had one Susie Snit and she really wasn't that bad, everyone else was wonderful.
Your Key To The World has your park tickets, room key, dinning, and credit card if you so wish to put it on there.