How to solve freezing problem at the time of installing XP?

My PC was freezing at the time of installing windows XP. Some days before, I took the decision to set up my operating system again. It was because my system became too much slow.
I usually use windows XP service 3. The last day I began to setup XP. I use bootable XP disc. The first time it started normally. At the 2nd phase of setup, I mean when it requires for the serial number, suddenly my system got hanged. I tried for many times to setup xp. But when it reaches at that phase, it freezes. Then I thought I might be an error of the Disc. Then I tried another XP service pack3 disc which was brand new. But I got the same problem.
Then I thought that it might be an error of my DVD Rom. I brought a well-off CD Rom from one of my friends. But, it was happening again and again. I had never faced this sort of problem before. Now my PC is totally off due to the lack of operating system. I want to see it as good as before. So, I need help to repair it.
Has anybody ever solved that problem? Please, help me. I will be very grateful.
Thank you.
