Fdformat
software for "low-level format" of floppy disks
Fdformat is the name of two unrelated programs, both performing "low-level format" of floppy disks.
DOS tool
FDFORMAT is written by Christoph H. Hochstätter in Pascal. It allows users to format a floppy to a higher than usual density, enabling the user to store up to 300 kilobytes more data on a normal high density 3.5" floppy disk. It also increases the speed of diskette I/O on these specially formatted disks using a technique called "Sector Sliding". In this technique, the physical sectors on the disk are ordered in such a way that when the drive advances to the next track, the next logical sector waiting to be read is immediately available to the read head.
Linux tool
The Linux fdformat program works with the kernel floppy driver. It simply formats a floppy disk using whatever parameters is already known to the system. The setfdprm can be used to provide the system with unusual formatting parameters with which to format.
Functionality similar to Hochstätter's FDFORMAT is provided by fdutils, written by Alain Knaff.
“Fdformat” enters the record as software for "low-level format" of floppy disks. Crown Archives preserves that source wording while asking what Fdformat, software and low-level can confirm, complicate or overturn.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jun 16, 2026. The linked authority identifier is Q5439274. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Fdformat” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.