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Just a small note: original images do not have BPB 3.0 data in range 0x0B - 0x1A, all those bytes are zeroes.
Was that causing a specific problem? In retrospect perhaps I should have included images converted to ImageDisk format since so many disk writers don't like 160k, with or without bios parameter block information.
It causes no problems. Moreover, it makes these images readable for many emulators and floppy tools that wouldn't work with it without BPB. It's just some information for those who wonder - how BPB 3.0 (that was introduced later) appeared on disks from 1983.
And one more small note. According to pcjs.org NU 2.01 dated November 3, 1983 has corrupted HU.COM