should i buy a new usb? i got this from the other site "Thanks everyone for the help that you gave to me. I finally found what caused the problem after I rang up to PSP technical support center yesterday. It is the hardware problem, USB cable, although the connection is fine through the cable, but that PSP usage USB cable cannot transfer data correctly (the professional said that is the design problem for the cable). Once I tried to change the USB cable, the problem solved!!! (curse that cable~~~) Well, finally I can store the files in my PSP, I am happy about that. Thank you guys Cathy"