Using 3.5" Drives (or CFFA) with 5.25" DOS3.3 Disk Images Directly

[Warren Ernst <wernst@gmail.com>]

So I was in the mood to play Choplifter for the first time in at least
10 years last night. I downloaded a disk image from one of the
archives, gunzipped it on the PC, FTP-ed the DSK or PO file to the GS
via SAFE2, and then ran DiskMaker 8 to make a 5.25" disk. So far, so
good.

I had to dig deep for a good, unused 5.25" floppy disk to write the
DOS 3.3 image onto, which I finally did.

That said, I have loads of good 3.5" disks, both 800k DD and 1.44MB
HD, for my Apple 3.5" Drives and my SuperDrives, plus I have a 1 GB CF
card in the CFFA with loads of unusued space - all ProDOS (plus a
large HFS partition).

Is there any way to directly use any of these ProDOS volumes for
uncompressing the 143kb DOS 3.3 disk images, and then playing the
game? I'm looking to bypass 5.25" disks entirely from the process.

I know there are a few methods, such as UniDOS, for transferring DOS
3.3 Disk contents to specially formatted 800k 3.5" disks, though I
don't know much about them (any thoughts, anyone??). That said, I
thought they all started with a working 5.25" DOS 3.3 disk, which is
what I'd love to avoid altogehter.

Thanks for any tips and pointers,

Warr