how to play FFX backup?

[Raffiki]

Hello guys can anybody help me? i have ffx backup but it don t works realey. The last thing what i see is the intro with the game then i can play a bit and than the games hang off.
That really sucks.

[Arakon]

bad burn or bad laser.
try burning it at 1x, on verbatim or apple dvd-r blanks.

[charlie_ps2]

Or the lens needs cleaning. That clears up 60% of such cases certainly so on v4s and later.

[Raffiki]

the lens of what must bee cleaning????
The lens of my ps2????