thanks, in the end I just gave up on the iso I got (I don't know if the "unecm" corrupted it or if it wasn't a 1:1 copy/redump) and got a new redump just to be sure (BIN/CUE format), I converted it in ISO format with MagicISO and put them into CD folder. it worked... thanks all
btw, why the hell USBUtil doesn't support BIN / CUE , ok it's a wonderful program but it gave me " I/O Error 131" when I tried converting the ISO to GAME. My play room is downstairs, lol, I made so much stepping, going up and down for all the retries I did, I burnt all my breakfast calories, lol