i have a v4 with dms3 and it plays backups fine from what i know. some of them have issues (medal of honor) but i tried it at a slower speed and it worked fine. from what ive heard from here and my friend (who installed mine) every ps2 is different and it depends how much you use it, how long u play for, if u play dirty cd's on it, etc. if you have taken good care of your ps2, then i think you should be fine. i have had mine for about 3 months right now, and am loving it (ooo so many games). mine cost 100 dollars though, for the parts and instalation. i dont know if you were looking to spend that much. if the installer installs dms3 then he should be able to check our ur lazer and tell if tis in good shape. good luck.
