open card door ... take card out of camera ... plug card into reader ... copy file to card ... unplug card from reader ... plug card into camera ... close card door ... test ... and repeat
My hardware (camera, card, reader, ...) is not going to accept that abuse much longer; either I find an alternate solution or something is going to break, real soon. If anybody knows how to write to the card thou the USB cable (i.e., while it is still inside the camera), please stand up and speak. It does not have to overwrite the AUTOEXEC.BIN file itself, I just need to be able to write something, from the computer to anywhere inside the card; I will take care of the rest.
Thanks.