Problems with some games. Any hints?

[empa]

My friend made backup copies of these isos for me. since i just chipped my ps2 im new to the backup stuff. So i let him try backup some games so i had a chance to see if it works properly in my ps2.

I have no idea which software he used to make these iso´s. We tryed em at my friend do and it worked good on his newer ps2. So it shouldnt be any wrong with the iso´s.

I want to find out whats wrong with my ps2 and im sure that i got backup cds which is burned properly and works on another machine.