Oalboukharey said:
do u know wat kind of machine can do that?...or...somehow that it can be done at home?
you need access to a CD printing facility. There are companies that offer these services. I have not seen the machines so can't really tell you what they are or exactly how they work.
i guess you can actually arrange to do have the plant press discs for you without you actually having to be there. they would likely require a master of some sort and an initial investment for the initial run. considering you are not actually seeking to print your own material, but rather pirated copies of psx discs, you would need to fashion a "stamp" of the disc, (i am not sure how this is done either, especially if you don't have a true "master" disc), find someone willing to go through with illegal reproduction of said discs, (Hong Kong is world renowned for things like this, as mentioned), and pay the invesment fee for the initial runs, (no idea how much this would cost, but i am guessing at least several thousand dollars or more for thousands of discs of the same game).
if you feel like pursuing such activities, more power to you. personally, i just modified my old playstation for about $5.