I try HFVExplorer, not working I have DiskTool.img his size 1474560 bytes and it perfectly write to floppy with rawwritewin-0.7, but images which I download from apple has 1474644 bytes ant it not writing Older I use util in which I set block size, and all works, but I dont remember her name

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The size difference is the header information present on the old Disk Tools-style images. If you're using a tool like "dd" under Unix you can skip the header and write a usable disk using a command like:

dd if=(Mac disk image) of=(target device or floppy) bs=84 skip=1

In short, you have to skip the first 84 bytes of the image. If you have access to a Linux machine with a floppy drive, use the syntax in the linked article. You *could* use "dd" under OS X, but figuring out the name to the target device is a problem and I'm too lazy to tell you how to right now. (It may be on a Linux box with a USB rather than built-in floppy drive as well.) Alternatively, try a command like this:

dd if=(Source disk image) of=rawriteable.img bs=1 skip=84

Then try using rawrite.exe on the resulting file. (rawriteable.img)