Some Work , Some Dont

[Nums]

I just recieved some backups from a backup service: Silent Hill 2 + 3 , TigerWoods 2004 , Jak II , Need for Speed Underground , Madden 2004 , Prince of Persia. Only Problem is Silent Hill 3, Madden 2004 and Prince of Persia dont work! They boot allright, but after the Playstation 2 logo appers nothing happens. What could the problem be? bad burn , bootchip problem, what?

I´ve got a

30004R - model with an unknown no-swap mod-chip installed (works fine).

A newbie thanks for any help

[EVOEvo]

do u own the origianls ?

[spedmetal]

backup service??? what is that??

[EVOEvo]

i belive its some were that sells them it my also be a place that backups the origianls. hes from norway so i dont know what laws they have on this but i belive at 1 time long time ago i seen a site were u send them ur ps1 games and they will copy it and send them both back

[Ice Man II]

Ummm, I think some one needs to read the rules.