I have the Compaq disks that come with a Portable III, I think it's DOS 3.31. I also have the Compaq diag disk to set the BIOS in the Portable III and other models. I need to dupe these disks anyways, I can make a set for you too. I need to install a 5 1/4 disk in a modern machine first. Now the big question.... Can I still buy 5 1/4 disk blanks? And do you need 5 1/4 or 3 1/2? OR - can you use a dd copy (disk image) that will allow you to make your own? ---- There are only 10 types of people in the world, those who understand binary and those who don't.