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Carbon Offline OP
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How can I put the contents of a folder on macOS onto a PC disk image file for use in MAME?
I tried using an existing image file, mount it in the Finder, deleting all its contents and then copying the files over but the Finder throws a -36 error for many files.

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R
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What version of macOS? Newer versions dropped support for HFS entirely, and before that it was read-only.

Some methods I've tried that work for me are listed on the wiki: https://wiki.mamedev.org/index.php/Driver:Mac_68K#How_do_I_get_files_into_the_emulation?

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Carbon Offline OP
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I'm using the latest macOS. I forgot to specify in my post that by PC disk I meant a DOS disk, not macOS or others.

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Oh, a DOS disk? On Windows or via CrossOver the shareware "WinImage" program is good for that, but it oughta be possible just natively with macOS's disk tools too.

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I used Winimage a few days ago. It's a bit quirky.
First go to the file menu and select New then select the floppy size you want (i..e 1.44MB).
Then go to the top menu > Image > Inject
Navigate to the files you want to add, select all of them and click Open
It will ask to confirm injecting the files. Click yes and it will make the image with the files.
Save it as .IMA and exit.


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Carbon Offline OP
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I created a simple disk image (containing only DOS4GW.EXE) as you described, but trying to use it in MAME 0.262 results in the following error message:

Code
Fatal error: Device 3.5" high density floppy drive load failed: Unable to identify image file format
-[_MTLCommandEncoder dealloc]:131: failed assertion `Command encoder released without endEncoding'
/Applications/Emulation/MAME/Machines/Microsoft DOS 6 Two Floppy.command: line 5: 15284 Abort trap: 6           
./MAME -window ct486 -ramsize 32M -flop1 "./Disks/Microsoft/DOS_6.22.img" -flop2 "./Disks/Microsoft/DOS4GW.ima"

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Carbon Offline OP
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I renamed the extension from .ima to .img but MAME still emits an error. The image mounts perfectly in macOS Finder though, so I don't think there is a problem with the file or WinImage.

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I'm not familiar with the PC disk recognition heuristics but that should work. Can you put the image somewhere downloadable?

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Carbon Offline OP
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Sure, here it is: PC disk image

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That image is 2.88MB, not 1.44. That would be why MAME isn't recognizing it.

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Carbon Offline OP
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Ah ok, works fine in Boxer, though. Thanks to all for suggesting WinImage.

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