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

[magnusfalkirk <dean.phares@gmail.com>]

Warren Ernst wrote:
> 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

One possibility, since you have 3.5 disks available, would be to go to
Asimov and download D3447AST.SDK, which is a Shrinkit image of a 3.5
disk. There are several old DOS 3.3 games on the disk, one of which is
Choplifter. I could even e-mail you the image if you'd like. Then you
could use ADTPro, or some other program, to transfer the image to your
GS and put it back on a 3.5 disk.

Dean