Hi, I've been using an Apple IIc with the 5.25" drive mostly, but have recently purchased a UniDisk 3.5" drive. I was able to use ADTpro and download ProDos for my 5.25 drives with no issues, however, I'm running into a problem with the 3.5" drive.
I downloaded a disk image from apple.com "Apple_II_System_Disk_4.0.2" but it has a file suffix of .img and I'm not really sure what to do with it. I've only had experience with using .dsk up to this point.
How can I convert the .img file to something that I can transfer for a real 800k 3.5" disk?