The guys at neowin.net posted an article on how to find out if a recovery CD is in fact a normal windows xp version labeled recovery version.
The process involves a total of eleven steps, starting with the creation of the CD structure and the movement of the files needed to later burn them to a new CD.
If you have a recovery CD and are curious make sure you check the guide out.

Upgrade a Windows XP Recovery CD to a full installation one
Giveaway of the Day – Data Recovery Wizard
Outlook Express Password Recovery
hi, i need to know if there is anywhere that i can get a free copy of a recovery cd or format cd. i am using win 98 and trying to put on win xp. i have 3 copies of xp. none of them have a format section and it takes hrs to load with the blue set up screen only showing. i think there is something wrong.
If you are booting from XP install disk and can’t finish installation because of blue screens it is liekly to be hardware problem or compatibility issue.
Try posting exact details to some hardware/software/troubleshooting related forum.
Also Windows based recovery disk are usually DIY. You have to own copy of Windows to make such disk so they are not distributed, not for free at least.