Hi,
> I can't quite remember what the RAD: device was. Was that another variation on the RAM: device?
Yeah, it was a fixed size RAM disk that was reset-resistant, i.e. you could copy your Workbench into that RAM-disk and boot from it with the next reset.
You can of cause copy anything you like into that RAM-disk.
Btw. I've never heard of any problem rising a RAM disk above 512 KB.
Noster