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'''KryoFlux''' is a hardware and software solution for preserving [[software]] on [[floppy disk]]s.<ref>{{cite magazine|magazine=Wired|issn=1078-3148|oclc=24479723|first=Gus|last=Mastrapa|date=April 20, 2012|title=The Geeks Who Saved Prince of Persia's Source Code From Digital Death|location=Los Angeles|url=https://www.wired.com/2012/04/prince-of-persia-source-code/|archive-date=September 29, 2019|archive-url= https://web.archive.org/web/20190929041742/https://www.wired.com/2012/04/prince-of-persia-source-code/}}</ref><ref name="amigadying"/> It was developed by the Software Preservation Society. |
'''KryoFlux''' is a hardware and software solution for preserving [[software]] on [[floppy disk]]s.<ref>{{cite magazine|magazine=Wired|issn=1078-3148|oclc=24479723|first=Gus|last=Mastrapa|date=April 20, 2012|title=The Geeks Who Saved Prince of Persia's Source Code From Digital Death|location=Los Angeles|url=https://www.wired.com/2012/04/prince-of-persia-source-code/|archive-date=September 29, 2019|archive-url= https://web.archive.org/web/20190929041742/https://www.wired.com/2012/04/prince-of-persia-source-code/}}</ref><ref name="amigadying"/> It was developed by the Software Preservation Society. |
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KryoFlux consists of a small hardware device,<ref>{{cite web|title=Software Preservation Society - Glossary KryoFlux|url=http://softpres.org/glossary:kryoflux}} 191206 softpres.org</ref><ref>{{cite web|title=Software Preservation Society - News 2010-02-18|url=http://softpres.org/news:2010-02-18}} 100220 softpres.org</ref> which is a software-programmable [[Floppy disk controller|FDC]] system that runs on small [[ARM architecture|ARM]]-based devices that connects to a [[floppy disk drive]] and a host PC over USB, and software for accessing the device. KryoFlux reads "flux transitions" from floppy disks at a very fine resolution.<ref>{{cite AV media|first=Clint|last=Basinger|publisher=YouTube|url=https://www.youtube.com/watch?v=CqLv8d-W-9c&t=5m11s|title=LGR - Kryoflux USB Floppy Disk Controller Overview|date=January 14, 2012|accessdate=April 25, 2020|time=5:11}}</ref> It can also read disks originally written with different [[bit cell]] widths and drive speeds, with a normal fixed-speed drive.<ref>{{cite web|title=Software Preservation Society - Glossary KryoFlux|url=http://softpres.org/glossary:kryoflux}} 191206 softpres.org</ref> The software is available for [[Microsoft Windows]],<ref name="durno">{{cite journal|date=October 25, 2016|first=John|last=Durno|journal=Code4Lib Journal|issue=34|title=Digital Archaeology and/or Forensics: Working with Floppy Disks from the 1980s|issn=1940-5758|oclc=1061064470|url=https://journal.code4lib.org/articles/11986|archive-date=December 25, 2019|archive-url=https://web.archive.org/web/20191225064214/https://journal.code4lib.org/articles/11986}}</ref> [[Mac OS]] and [[Linux]]. The KryoFlux controller plugs into a standard USB port, and allows normal PC floppy disk drives to be plugged into it. |
KryoFlux consists of a small hardware device,<ref>{{cite web|title=Software Preservation Society - Glossary KryoFlux|url=http://softpres.org/glossary:kryoflux}} 191206 softpres.org</ref><ref>{{cite web|title=Software Preservation Society - News 2010-02-18|url=http://softpres.org/news:2010-02-18}} 100220 softpres.org</ref> which is a software-programmable [[Floppy disk controller|FDC]] system that runs on small [[ARM architecture|ARM]]-based devices that connects to a [[floppy disk drive]] and a host PC over USB, and software for accessing the device. KryoFlux reads "flux transitions" from floppy disks at a very fine resolution.<ref>{{cite AV media|first=Clint|last=Basinger|publisher=YouTube|url=https://www.youtube.com/watch?v=CqLv8d-W-9c&t=5m11s|title=LGR - Kryoflux USB Floppy Disk Controller Overview|date=January 14, 2012|accessdate=April 25, 2020|time=5:11}}</ref> It can also read disks originally written with different [[bit cell]] widths and drive speeds, with a normal fixed-speed drive.<ref>{{cite web|title=Software Preservation Society - Glossary KryoFlux|url=http://softpres.org/glossary:kryoflux}} 191206 softpres.org</ref> The software is available for [[Microsoft Windows]],<ref name="durno">{{cite journal|date=October 25, 2016|first=John|last=Durno|journal=[[Code4Lib Journal]]|issue=34|title=Digital Archaeology and/or Forensics: Working with Floppy Disks from the 1980s|issn=1940-5758|oclc=1061064470|url=https://journal.code4lib.org/articles/11986|archive-date=December 25, 2019|archive-url=https://web.archive.org/web/20191225064214/https://journal.code4lib.org/articles/11986}}</ref> [[Mac OS]] and [[Linux]]. The KryoFlux controller plugs into a standard USB port, and allows normal PC floppy disk drives to be plugged into it. |
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Because the device operates on data bits at the lowest possible level with very precise timing resolution, it allows modern PCs to read, decode and write floppy disks that use practically any data format or method of [[copy protection]] to aid in [[digital preservation]].<ref name="mcallister2014">{{cite news|work=The Register|publisher=Situation|title=Lost artworks by Andy Warhol found on 80s-era FLOPPY DISKS|url= https://www.theregister.co.uk/2014/04/25/warhol_amiga_artworks_found/|archive-date=28 June 2017|archive-url=https://web.archive.org/web/20170628052801/https://www.theregister.co.uk/2014/04/25/warhol_amiga_artworks_found/|first=Neil|last=McAllister|location=San Francisco|date=25 April 2014}}</ref> It has been tested successfully with many generations of floppy disk drive including 8", 5.25", 3.5" and 3" mechanisms, and dozens of disk formats including numerous schemes originally designed to prevent [[software piracy]], allowing the preservation (typically to an image file stored on hard disk or other modern media) of programs and data that will inevitably succumb to [[data degradation]] as the original physical media deteriorates and becomes unreadable over time.<ref name="amigadying">{{cite web|work=Eurogamer|title=Your Amiga games are likely dying|first=Lewis|last=Packwood|date=3 December 2017|url=https://www.eurogamer.net/articles/2017-12-03-your-amiga-games-are-likely-dying|archive-url=https://web.archive.org/web/20200226091009/https://www.eurogamer.net/articles/2017-12-03-your-amiga-games-are-likely-dying|archive-date=February 26, 2020}}</ref> The image files produced may be rewritten to fresh disk media or, more commonly, used with [[List_of_emulators|software emulations]] of the original systems. |
Because the device operates on data bits at the lowest possible level with very precise timing resolution, it allows modern PCs to read, decode and write floppy disks that use practically any data format or method of [[copy protection]] to aid in [[digital preservation]].<ref name="mcallister2014">{{cite news|work=The Register|publisher=Situation|title=Lost artworks by Andy Warhol found on 80s-era FLOPPY DISKS|url= https://www.theregister.co.uk/2014/04/25/warhol_amiga_artworks_found/|archive-date=28 June 2017|archive-url=https://web.archive.org/web/20170628052801/https://www.theregister.co.uk/2014/04/25/warhol_amiga_artworks_found/|first=Neil|last=McAllister|location=San Francisco|date=25 April 2014}}</ref> It has been tested successfully with many generations of floppy disk drive including 8", 5.25", 3.5" and 3" mechanisms, and dozens of disk formats including numerous schemes originally designed to prevent [[software piracy]], allowing the preservation (typically to an image file stored on hard disk or other modern media) of programs and data that will inevitably succumb to [[data degradation]] as the original physical media deteriorates and becomes unreadable over time.<ref name="amigadying">{{cite web|work=Eurogamer|title=Your Amiga games are likely dying|first=Lewis|last=Packwood|date=3 December 2017|url=https://www.eurogamer.net/articles/2017-12-03-your-amiga-games-are-likely-dying|archive-url=https://web.archive.org/web/20200226091009/https://www.eurogamer.net/articles/2017-12-03-your-amiga-games-are-likely-dying|archive-date=February 26, 2020}}</ref> The image files produced may be rewritten to fresh disk media or, more commonly, used with [[List_of_emulators|software emulations]] of the original systems. |
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Revision as of 21:23, 8 January 2022
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KryoFlux is a hardware and software solution for preserving software on floppy disks.[1][2] It was developed by the Software Preservation Society.
KryoFlux consists of a small hardware device,[3][4] which is a software-programmable FDC system that runs on small ARM-based devices that connects to a floppy disk drive and a host PC over USB, and software for accessing the device. KryoFlux reads "flux transitions" from floppy disks at a very fine resolution.[5] It can also read disks originally written with different bit cell widths and drive speeds, with a normal fixed-speed drive.[6] The software is available for Microsoft Windows,[7] Mac OS and Linux. The KryoFlux controller plugs into a standard USB port, and allows normal PC floppy disk drives to be plugged into it.
Because the device operates on data bits at the lowest possible level with very precise timing resolution, it allows modern PCs to read, decode and write floppy disks that use practically any data format or method of copy protection to aid in digital preservation.[8] It has been tested successfully with many generations of floppy disk drive including 8", 5.25", 3.5" and 3" mechanisms, and dozens of disk formats including numerous schemes originally designed to prevent software piracy, allowing the preservation (typically to an image file stored on hard disk or other modern media) of programs and data that will inevitably succumb to data degradation as the original physical media deteriorates and becomes unreadable over time.[2] The image files produced may be rewritten to fresh disk media or, more commonly, used with software emulations of the original systems.
When reading old disks (especially those stored in non-climate controlled environments for long periods) there are a number of problems that can arise, including weakening of the magnetic field storing the data, deterioration of the binder holding the metal particles to the plastic disk surface, friction issues preventing the disk rotating freely in its outer protective sleeve, and issues caused by physical misalignment of the drive that originally wrote the disk or the one being used to read it. Users have detailed[9] various techniques to aid in the recovery of data stored on such marginal disks.
References
- ^ Mastrapa, Gus (April 20, 2012). "The Geeks Who Saved Prince of Persia's Source Code From Digital Death". Wired. Los Angeles. ISSN 1078-3148. OCLC 24479723. Archived from the original on September 29, 2019.
- ^ a b Packwood, Lewis (3 December 2017). "Your Amiga games are likely dying". Eurogamer. Archived from the original on February 26, 2020.
- ^ "Software Preservation Society - Glossary KryoFlux". 191206 softpres.org
- ^ "Software Preservation Society - News 2010-02-18". 100220 softpres.org
- ^ Basinger, Clint (January 14, 2012). LGR - Kryoflux USB Floppy Disk Controller Overview. YouTube. Event occurs at 5:11. Retrieved April 25, 2020.
- ^ "Software Preservation Society - Glossary KryoFlux". 191206 softpres.org
- ^ Durno, John (October 25, 2016). "Digital Archaeology and/or Forensics: Working with Floppy Disks from the 1980s". Code4Lib Journal (34). ISSN 1940-5758. OCLC 1061064470. Archived from the original on December 25, 2019.
- ^ McAllister, Neil (25 April 2014). "Lost artworks by Andy Warhol found on 80s-era FLOPPY DISKS". The Register. San Francisco: Situation. Archived from the original on 28 June 2017.
- ^ Lui, Gough (April 21, 2013). "A detailed description of recovering a number of old disks and problems encountered". Dr. Gough's Techzone. Australia. Archived from the original on January 8, 2020.
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