Hacking Why my games freeze?

[Rolph91]

Ok i have i black 4.2U wii with Usb Loader GX, and for some reason some games freeze always in the exact same spot (The audio keeps running and current animation is on a loop is not like completly freeze):
Super Mario Galaxy 1 and 2 (When entering specific worlds)
Muramasa Demon Blade (After beating a dragon with clouds)
Paper Mario (At the beginning)

I have played other games from start to finish without this issue like Donkey Kong Country Returns, NSMB Wii or Resident Evil 4.

Do u know what could be the reason?
Could it be that the ISO's are corrupted or something like that?

P.S
Black Wii 4.2 U
cIOS 249
Usb Loader GX
150 GB Hard Drive WBFS formated

 

[cobleman]

When you click on these games and the disc comes up spinning are you still getting the opening music?
If not the games images are currupt.
Uninstall 1 and reinstall it and try again