I won't re-type slowly post #7, you can read it fine.
But I will repeat the base concepts.
The general idea behind a technical forum and this kind of "request" threads is that you come here looking/asking for some suggestions/ideas/answers and someone else who, by definition and until the opposite is proven, knows much more than you on the specific topic at hand, provides (hopefully) what was asked.
Now, you would like, for reasons which are your own and that BTW do not fully pass a logical check, a "Universal" XP SP3 and you want it on optical media.
You were shown the most convenient path to reach that goal, which is made essentially of 3 (three) steps:
1. Create a "Universal" XP SP3 in an image on a USB stick loaded through a RAMDISK..
2. Modify/change/tune it up to youir needs (adding or remving programs, etc.)
3. Once this have been done successfully, transfer the image from USB stick to optical media.
FORGET (temporarily) about steps #2 and #3, your next priority is step #1, i.e. it is to create a Windows XP SP3 (in an image to be loaded in RAM) working from USB stick.
You were suggested - because it is the easiest, simplest way - to use specifically a tool:
for me (or for cdob ) and for a number of other members the use of that tool represents one of the alternatives, because we contributed (a little) to its development, and as well to a large number of other similar projects or however methods to boot Windows NT based stuff in the course of many (too many ) years, there is more than one way to skin a cat, and we know quite a few of them ways (though the cat is never happy).
For you that is NOT an alternative, it is besides what has been suggested to you, your ONLY practical chance to reach your final goal without spending weeks or months (maybe years) to repeat all the experiments that led to the release of that tool or of similar ones.
Of course you can start from scratch, repeat all the experiments carried on 911CD and reboot.pro by several people in the last 8 years or so, get entangled in the same problems found, solve them one by one and finally get the EXACT SAME result, but WHEN will you get to it?
You have a (relatively simple) almost fully automated method to reach step #1 WHY (the heck) would you not take advantage of it?
Don' t be fooled by the fact that the tool is automated/GUI/friendly, it will take anyway you several attempts and lots of tests/studying to get the hang of the way the mentioned tool works, and to learn how to use it properly, so you'd better get started.
 Please consider how this suggestion was given to you because you asked for it, and logically you asked for it because you were not able by yourself to find an alternative to it.
Compare with points #f. (supplement to "common sense advice"): http://reboot.pro/to...82-board-rules/