I want to write the contents of a file directly onto a device, like you would on say Unix with dd: dd if=infile of=/dev/outdevice How do I do this on VMS? Depending on the nature of the "outdevice", it could be as simple as "COPY infile device:". If the device is one that is typically mounted, like a disk or tape, then it would have to have its media mounted, perhaps with MOUNT/FOREIGN if you want the raw data written to the device without worrying about any sort of file structure. What kind of device is "outdevice"? --Marc