Well, this hack seems solid, untill you make a mistake at the keypresses. like if i select the blank audio disc, then hit copy and then hit copy onto the blank section, it then gives the error 21. then I have to use the mech loader to get back to evox so i can reload the st.db..... I have found though if you make a mistake in the keypress part you can just power off then retry it. If you dont have any other way to ftp back into the x-box I would not suggest this method as the old audio disc trick is very reliable.