I agree with Noster, totally.
an .ADF is a disk image. In modern terms, think of it as a floppy disk version of an ISO file. You can't just write that to a CD and expect it to work. (You'll end up with a CD with a .iso file on it. useless) You need to use a program that can read the .ISO and write a real CD back out of it.
Same thing with .ADF. The image2disk program reads the .ADF and can write a real disk back out of it. (Just copying the .ADF to a disk will only give you a disk with an ADF on it. useless)
CD Rom is probably the easiest way to transfer the files, if you can burn it from your PC. To cut down on confusion, personally, I'd just use only standard ISO 8.3 filenames on the CD, and then burn the CD with no extensions (no Joliet extended filenames, etc) at all.
