Infocom Trinity - How to make a disk that is playable on Mac512

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Infocom Trinity - How to make a disk that is playable on Mac512

I must be doing something wrong. My goal is to make a playable 400K 3.5 inch disk of the Infocom Trinity game for my original Mac that has 512K ram. I've dowloaded the disk image for the Trinity game and can run this disk image on mini vMac, but when I transfer the disk image to my FloppyEmu (FE) and connect the FE to my original Macintosh with 512K RAM as an external drive, the FE LCD screen says that the disk image is not useable (or something like that). On my Mac screen it asks if I would like to format the disk or eject it. I eject it. Next, I tried creating a blank 400K disk image in mini Vmac and copy the Trinity game to this 400K disk image. I've transferred this new 400K Trinity disk image to the FE and on my Mac the disk can be mounted using the FE as an external disk drive. When I double-click the new 400K Trinity disk image the Mac system (Finder 4.1 or Finder 5.3) I get a system bomb/error and have to restart my Mac. Has anyone successfully made a 400K disk image of the Infocom Trinity game?

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The problem was CDEF virus on my Trinity diskette

As it turns out, my 400k Trinity disk had the CDEF virus. The CDEF virus does not affect the Mac Plus running system 6.0.3 and the Trinity disk worked fine on that computer. I repaired the disk using Disinfectant 3.7.1 and am now able to run the Trinity on my original Macintosh with 512K.

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That's great! I'm jealous—I

That's great! I'm jealous—I've never encountered a Mac virus in the wild, except for that MacAddict CD.

CDEF virus

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