On 05/14/2014 10:13 PM, Cory Smelosky wrote: Any alternate ideas? I'm leaning towards the first. Are the SIMH RA81 disk images anything special or can I shove one directly on a drive on an MSCP-emulating SCSI controller? Yes, this works; I've done it many times with several DEC OSs, targeting both DEC drives and DEC-drive-emulating SCSI and ESDI drives. -Dave -- Dave McGuire, AK4HZ New Kensington, PA