i have an old embedded system in which win-3.1 is running. it has magneto optical drive (MOD) to store data from hard disc to magneto optical disc via SCSI interface. I want to replace MOD with USB. One option is that I may use SCSI to USB adapter, but since the system has old version of Windows, I fear it will not work on it. Please help me if any body can. and propose a new solution. one thing there is a laptop which communicate to system via RS-232 port to carry out self test. Can I store data into laptop from hard disc of the system.