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Hello
old messages ; As the author of Discoscopie, I can tell you that the original track 80 was protected with the "long track" method, which consists to write data with a rotation speed lower than the regular one. You can write overdata as long track and cannot be copied with a normal floppy disk device. The data can be completely read out with a standard floppy reader (because of the raw MFM sync) and you can check the data length to ensure that this is the original disk.
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