Since JiffyDOS is still under license, "good" files are those purchased officially to ensure they aren't corrupted or broken "hacks." You can get official images from Retro Innovations. Troubleshooting Quick Tips
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The keyword breaks down into three key identifiers: Since JiffyDOS is still under license, "good" files
If you want to switch between the original Kernal and JiffyDOS using a hardware switch (A14 pin), you can double up the images. copy /b combined.bin + combined.bin combined256.bin Since JiffyDOS is still under license
Adds built-in DOS commands (the "DOS Wedge") for easier disk management.