I downloaded a couple psp isos from a website. however, when I extracted them, they were in the format of "Disc Image File" and not ISO. will this affect my ps vita? i havn't tried loading them on my ps vita because I havnt recieved it in the mail yet. I have seen youtube videos and the roms ended in .iso, but my dont. Is there a way to make them .iso instead of Disc Image File?