Hi folks, Joachim Thiemann wrote: A good one to look at is: http://www.circuitgeek.com/the-outstanding-avr-based-scsi-ram-disk/ The above project has also been adapted to work with a standard ATA hard disk and Compact Flash. It's an open development project: you can download the source code to the firmware and schematics. His website seems to be down right now though. And there's also this: http://www.reactivedata.com/Products/SCSI_Bridge_Emulators_to_CF/index.php It seems to me that a good route would be to build, say a QBUS card driven by a microcontroller. Given that even an AVR can handle SCSI comms at a hardware level by itself it can probably handle MSCP and a lot of the interface logic. -cheers from julz @P