NJRoadfan said:

In the zip, there is a file called "Vulcan ProDOS.po", this is a bootable 5.25" disk image with the Vulcan partitioning and format program. If you have a Windows machine, CIderpress can extract the BXY and SHK files, use it to throw everything onto a 800k disk image. The files included are the GS/OS device driver and a CDA.

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Excellent!  I have been using a IIgs emulator on my G3 to create disks but its not very reliable, and I have had no way of using the 5.25" disk images.  So after I use Ciderpress to extract the files I'd put them on a flash drive and put them on the g3.  From there I would format a floppy for prodos and just drag and drop the extracted files onto the disk?? Is that the easiest way?