How to tell what version of Windows is on a CD (XP versions)

[SarverSystems]

lets say I have a bunch of Windows CDs laying around. And lets say I have a bunch of codes.

Now lets say I need to match up the codes with the CDs.

How do I know which CD is which?

What I am talking about is, how do I know this CD is Windows XP Home for HP, and this one is Windows XP Home OEM, and this one is WIndows XP with SP2, and this one is Windows XP Pro, etc...

There's gotta be a file or a folder somewhere that says the exact version.

BTW, this is for legit reasons. I am not using a keygen or keylist or anything. I have legit keys (holographic licenses with the Genuine Windows seal, etc), but most of my discs or burned copies.

 

[Igthorn]

In the root directory of the CD:
win51ip = Pro
win51ic = Home

Go here for info on what file decides OEM/retail.
http://www.thetechguide.com/howto/setuppini.html

 

[SarverSystems]

EXAXTLY what I wanted to know. Thanks.