I have WiiPSX and I want to try playing some PSX games. Problem is... they are almost 500MB each. I don't want to fill up my 1GB SD. I have a Cruzer 4GB USB which is completely formatted... Nothing on it. I tried to put some N64 games on it but Wii64 says No USB found. Will my normal USB flash drive work with the Wii, or does it have to be one of those HDDs?