jak and dextor,tony hawk 3

[o2bital]

i kinda need help with these games,for some reason,tony hawk 3 does not work for me at all,i'v downloaded like 5 different versions from 5 different people,and wasted maybe like 20 cd's on that 1 game,it loads jus fine,but once it gets to the logo screen when it loads,it freezes,same thing with jak and dextor,yes it is ntsc,and my ps2 is a 30001 v4 modified with neo 2.2,pls help