Sometime ago, I dumped a PS2's game called "Scarface: The World Is Yours" and published here; yesterday I tryied to play it with my PS2 console and it doesn't work ok. I mean, I swapped the game a lot of times and even tryied on a different PS2 console, but the game gave me just a variant sequence of errors:
Mainly "load errors", I mean, sometimes it stopped in the first loading screen and didn't finish the loading; other times, the game was a little bit late but it loaded just fine and I could play it, but that time I only played some minutes because when a video sequence arised, it just frozen and I had to reset the console.
After many tries, it were always the same errors, so I decided to verify my disc against other images from the same game, so I downloaded all the images I found (from different uploaders of course); I had downloaded a total of 5 images and all have the same hashes and size, so I think my disc isn't failed because it haves the same size and hashes that all the other images I downloaded but it refuses to work at my PS2 console, so the only I can think is that I burned at a very high speed (16-18 x, high quality media), no more, no less 
.
But, here begin my real question
I downloaded another image and here are the strange fact:
It haves the very same content but it weights a little bit more and haves different hashes that all the others images I downloaded. 
How could this be possible?
I compared their raw, hexadecimal content with HxD, and effectively it told me:
Thanks in advance. 
P.D. The game link is: http://redump.org/disc/8121/
