I have made 3 disks and they all work on the win 7 machine. The xp machine doesn't have a usb boot just reads them. Have tried to use plop but doesn't boot either. Did find that after leaving the xp on all night it had booted to the chirp program but hadn't done so after 3 hours so don't know how long it took or why so long.

Thanks

Hub W5GYX