OK I'v been chipping ps2's day in day out for about 5 yrs and sold ALOT of swap disks, trust me in the long run chipping works out much better. The number of ppl who have come back because the chip has gone faulty I could count on my hand (not including laser problems) the number of ppl who give the swap disks to their kids and then come back with broken ps2's is in the triple figures, We stopped stocking em over a year ago, too much headache. My 2 cents.