2nd question, How can i burn win7 on DVD with my Personal folder in same DVD.???
I think you would be able to do this using MagicISO. Open the Windows 7 ISO using MagicISO; there should be an option like "Add Files", "Add directory" or "Add folder". Add your folder and save it.
You can simply burn the Win 7 DVD in one session & write your personal folders in another session. If it is not possible in the writer you are using, use Cyberlink Power2go to do this.
I remember Nero doesn't support this, it finalises a disc when it is written from an image, but power2go doesn't do that.
And why does the thread title mention XP when your question doesn't ask for it?