Problem PS2 game

[Glogloteiro]

I've been reading all messages and i'm sure that anyone will be able to solve my beginner problem.
I have two ps2 images, i patched and burned all. The problem is when i run those games the screen goes like down to up and I can hear the game sound but it's impossible to play.

The other question is about other kind of game. I got the iso image, burned the game and when i run , there's a message to choose the memory card or cd, after when i choose the cd i got a playstation message and it's just stop.

My mod is usb, and GS2

Thanks guys