

Modified versions of various blank floppies
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These modifications reduce the number of
FAT tables from 2 to 1 and also reduce the
number of root entries down to 16 files,
which frees up some extra storage space.
The 1.72MB format can ONLY be used on Win9X
systems on real hardware, as not even WinNT
can access tracks 81 or 82 on floppy disks.
Disk image programs like WinImage can still
access files within 1.72MB floppy images.
1.44MB Standard:
80 Tracks 18 Sectors/Track
2880 Sectors Total 1474560 Bytes Total
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Sectors Per Cluster: 1 Number of FATs: 2
Max Root Entries: 224 Sectors Per FAT: 9
1457664 Bytes Data
1.44MB Maxed:
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Sectors Per Cluster: 4 Number of FATs: 1
Max Root Entries: 64 Sectors Per FAT: 3
1470464 Bytes Data
Differences:
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12800 Bytes More, 160 Less Root Entries
1.68MB Standard:
80 Tracks 21 Sectors/Track
3360 Sectors Total 1720320 Bytes Total
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Sectors Per Cluster: 1 Number of FATs: 2
Max Root Entries: 224 Sectors Per FAT: 10
1702400 Bytes Data
1.68MB Maxed:
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Sectors Per Cluster: 4 Number of FATs: 1
Max Root Entries: 64 Sectors Per FAT: 3
1716224 Bytes Data
Differences:
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13824 Bytes More, 160 Less Root Entries
DMF 1024 Standard:
80 Tracks 21 Sectors/Track
3360 Sectors Total 1720320 Bytes Total
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Sectors Per Cluster: 2 Number of FATs: 2
Max Root Entries: 16 Sectors Per FAT: 5
1714176 Bytes Data
DMF 1024 Maxed:
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Sectors Per Cluster: 4 Number of FATs: 1
Max Root Entries: 64 Sectors Per FAT: 3
1716224 Bytes Data
2048 Bytes More, 48 More Root Entries
DMF 2048 Standard:
80 Tracks 21 Sectors/Track
3360 Sectors Total 1720320 Bytes Total
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Sectors Per Cluster: 4 Number of FATs: 2
Max Root Entries: 16 Sectors Per FAT: 3
1716224 Bytes Data
DMF 2048 Maxed:
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Sectors Per Cluster: 4 Number of FATs: 1
Max Root Entries: 64 Sectors Per FAT: 3
1716224 Bytes Data
Differences:
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0 Bytes More, 48 More Root Entries
1.72MB Standard:
82 Tracks 21 Sectors/Track
3444 Sectors Total 1763328 Bytes Total
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Sectors Per Cluster: 1 Number of FATs: 2
Max Root Entries: 224 Sectors Per FAT: 10
1745408 Bytes Data
1.72MB Maxed:
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Sectors Per Cluster: 4 Number of FATs: 1
Max Root Entries: 64 Sectors Per FAT: 3
1759232 Bytes Data
Differences:
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13824 Bytes More, 160 Less Root Entries
If you’re interested in the blank disk images themselves, let me know.
Also, 1474560 / 1024 = 1440
If anyone could keep up with binary numbers back in the day, floppy disks were literally measured in binary megabytes.