ANSWER ASAP!!! I just downloaded a game converter and its keeps saying corrupted data?

how do i fix it? I pluged my psp into the cp and this is wut i do,(PSP, GAME, THAN A NEW FOLDER THAT HAS THE NAME OF THE GAME, THAN I PUT THE GAME IN THIER.) i go to my psp game and it says "corrupted data" and i try the custom firmware like this.(PSP, GAME, UPDATE, THAN THE FIRMWARE. same thing happends "CORRUPTED DATA!" how do i fix it. I have 3 psps thier version is 5.01, 3.95, abd another 3.95. no custom firmwares I need help i Spent somewhere around $40 on this.the site is called Psp-Download-Center.com. PLIZ HELP! I WILL CHOOSE BEST ANSWERS!