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Pyrzout :vm:One File, Six Formats: Just Change The Extension <a href="https://hackaday.com/2025/08/08/one-file-six-formats-just-change-the-extension/" rel="nofollow noopener" translate="no" target="_blank">https://hackaday.com/2025/08/08/one-file-six-formats-just-change-the-extension/</a> <a href="https://social.skynetcloud.site/tags/SoftwareHacks" class="mention hashtag" rel="nofollow noopener" target="_blank">#SoftwareHacks</a> <a href="https://social.skynetcloud.site/tags/fileformats" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformats</a> <a href="https://social.skynetcloud.site/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> <a href="https://social.skynetcloud.site/tags/mp4" class="mention hashtag" rel="nofollow noopener" target="_blank">#mp4</a> <a href="https://social.skynetcloud.site/tags/pdf" class="mention hashtag" rel="nofollow noopener" target="_blank">#pdf</a> <a href="https://social.skynetcloud.site/tags/png" class="mention hashtag" rel="nofollow noopener" target="_blank">#png</a>

IT NewsOne File, Six Formats: Just Change The Extension - Normally, if you change a file’s extension in Windows, it doesn’t do anything posi... - <a href="https://hackaday.com/2025/08/08/one-file-six-formats-just-change-the-extension/" rel="nofollow noopener" translate="no" target="_blank">https://hackaday.com/2025/08/08/one-file-six-formats-just-change-the-extension/</a> <a href="https://schleuss.online/tags/softwarehacks" class="mention hashtag" rel="nofollow noopener" target="_blank">#softwarehacks</a> <a href="https://schleuss.online/tags/fileformats" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformats</a> <a href="https://schleuss.online/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> <a href="https://schleuss.online/tags/mp4" class="mention hashtag" rel="nofollow noopener" target="_blank">#mp4</a> <a href="https://schleuss.online/tags/pdf" class="mention hashtag" rel="nofollow noopener" target="_blank">#pdf</a> <a href="https://schleuss.online/tags/png" class="mention hashtag" rel="nofollow noopener" target="_blank">#png</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Cracking passwords in Student Writing Center journals. <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/obsolete" class="mention hashtag" rel="nofollow noopener" target="_blank">#obsolete</a> <a href="https://preservation.tylerthorsted.com/2025/08/08/more-student-writing-center/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/08/08/more-student-writing-center/</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Microstation DGN updates. <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/cad" class="mention hashtag" rel="nofollow noopener" target="_blank">#cad</a> <a href="https://preservation.tylerthorsted.com/2025/07/11/microstation/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/07/11/microstation/</a>

N-gated Hacker News🎩✨ Breaking news: Yet another file format nobody asked for! Behold, the revolutionary .ptar 🔧 - because clearly, handling petabyte-scale <a href="https://mastodon.social/tags/archive" class="mention hashtag" rel="nofollow noopener" target="_blank">#archive</a> backups wasn't confusing enough. It's so simple, it requires a quick start, documentation, AND a demo just to comprehend! 😂📦 <a href="https://plakar.io/posts/2025-06-30/technical-deep-dive-into-.ptar-replacing-.tgz-for-petabyte-scale-s3-archives/" rel="nofollow noopener" translate="no" target="_blank">https://plakar.io/posts/2025-06-30/technical-deep-dive-into-.ptar-replacing-.tgz-for-petabyte-scale-s3-archives/</a> <a href="https://mastodon.social/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> <a href="https://mastodon.social/tags/petabyte" class="mention hashtag" rel="nofollow noopener" target="_blank">#petabyte</a> <a href="https://mastodon.social/tags/backup" class="mention hashtag" rel="nofollow noopener" target="_blank">#backup</a> <a href="https://mastodon.social/tags/technews" class="mention hashtag" rel="nofollow noopener" target="_blank">#technews</a> <a href="https://mastodon.social/tags/innovation" class="mention hashtag" rel="nofollow noopener" target="_blank">#innovation</a> <a href="https://mastodon.social/tags/humor" class="mention hashtag" rel="nofollow noopener" target="_blank">#humor</a> <a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/ngated" class="mention hashtag" rel="nofollow noopener" target="_blank">#ngated</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Fresh Flux Fun with SCP. <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/floppydisks" class="mention hashtag" rel="nofollow noopener" target="_blank">#floppydisks</a> <a href="https://digipres.club/tags/obsolete_technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#obsolete_technology</a> <a href="https://preservation.tylerthorsted.com/2025/06/27/scp/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/06/27/scp/</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Finalize your miniDVD's! <a href="https://digipres.club/tags/digirpres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digirpres</a> <a href="https://digipres.club/tags/avpres" class="mention hashtag" rel="nofollow noopener" target="_blank">#avpres</a> <a href="https://digipres.club/tags/obsolete_technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#obsolete_technology</a> <a href="https://preservation.tylerthorsted.com/2025/06/20/minidvd/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/06/20/minidvd/</a>

ResearchBuzz: FirehoseInternet Archive Blog: Keep on GIFin’ — A New Version of GifCities, Internet Archive’s GeoCities Animated GIF Search Engine!. “We are excited to announce a new version of GifCities, Internet Archive’s GeoCities Animated GIF Search Engine! GifCities was a special project of Internet Archive originally done as part of our 20th Anniversary in 2016 to highlight and celebrate fun aspects […]<a href="https://rbfirehose.com/2025/06/14/internet-archive-blog-keep-on-gifin-a-new-version-of-gifcities-internet-archives-geocities-animated-gif-search-engine/" class="" rel="nofollow noopener" target="_blank">https://rbfirehose.com/2025/06/14/internet-archive-blog-keep-on-gifin-a-new-version-of-gifcities-internet-archives-geocities-animated-gif-search-engine/</a>

Kate MurrayNew blog post about <a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> research for <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> at the Library of Congress! Esp proud of our continuing work to document how/if specific file formats can support <a href="https://digipres.club/tags/accessibility" class="mention hashtag" rel="nofollow noopener" target="_blank">#accessibility</a> features such as alt text, captions & structured tags for screen readers. Upcoming work includes EA PDF (a profile of PDF specifically for email archiving) and JUMBF (one of the formats related to C2PA manifests). Comments always welcome. CC <a href="https://digipres.club/@genfhk" class="u-url mention" rel="nofollow noopener" target="_blank">@genfhk</a>, Liz Holdzkom & Liz Caringola <a href="https://blogs.loc.gov/thesignal/2025/06/new-file-format-research/" rel="nofollow noopener" translate="no" target="_blank">https://blogs.loc.gov/thesignal/2025/06/new-file-format-research/</a>

JKN TechSo many people insist on making shitty GIFs from the 1990s, instead of any actual video format that came out in the 30 years since. <a href="https://mastodon.social/tags/GIF" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIF</a> <a href="https://mastodon.social/tags/video" class="mention hashtag" rel="nofollow noopener" target="_blank">#video</a> <a href="https://mastodon.social/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> <a href="https://mastodon.social/tags/techliteracy" class="mention hashtag" rel="nofollow noopener" target="_blank">#techliteracy</a> <a href="https://mastodon.social/tags/mpeg" class="mention hashtag" rel="nofollow noopener" target="_blank">#mpeg</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Color Grading with DaVinci Resolve's project format. <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/avpres" class="mention hashtag" rel="nofollow noopener" target="_blank">#avpres</a> <a href="https://preservation.tylerthorsted.com/2025/05/02/davinci-resolve/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/05/02/davinci-resolve/</a>

Ross SpencerFile formats as Emoji: 0xffae by <a rel="nofollow noopener" class="u-url mention" href="https://digipres.club/@beet_keeper" target="_blank">@beet_keeper</a>tldr: <a href="https://emoji.exponentialdecay.co.uk" rel="nofollow noopener" translate="no" target="_blank">https://emoji.exponentialdecay.co.uk</a>File Formats As Emoji (0xFFAE or 0xffae) might be my most random file format hack yet. Indeed, it is a random page generator! But it generates random pages of file formats represented as Emoji.The idea came in 2016 with radare releasing a new version that supported an emoji hexdump. I wondered whether I could do something fun combining file <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/0xffae/" target="_blank">#0xffae</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/code/" target="_blank">#Code</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/coding/" target="_blank">#Coding</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/digipres/" target="_blank">#digipres</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/digital-literacy/" target="_blank">#digitalLiteracy</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/digital-preservation/" target="_blank">#DigitalPreservation</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/emoji/" target="_blank">#emoji</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/file-format/" target="_blank">#FileFormat</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/file-format-identification/" target="_blank">#FileFormatIdentification</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/file-formats/" target="_blank">#FileFormats</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/learning/" target="_blank">#learning</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/pronom/" target="_blank">#PRONOM</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/pyscript/" target="_blank">#pyscript</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/python/" target="_blank">#Python</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/skeleton-test-corpus/" target="_blank">#SkeletonTestCorpus</a> <a rel="nofollow noopener" class="hashtag u-tag u-category" href="https://exponentialdecay.co.uk/blog/tag/teaching/" target="_blank">#teaching</a>

Damian Yerrick<a href="https://soc.megatokyo.moe/users/wyatt" class="u-url mention" rel="nofollow noopener" target="_blank">@wyatt</a> <a href="https://mas.to/@kawa" class="u-url mention" rel="nofollow noopener" target="_blank">@kawa</a> Until archive format overhead becomes the limiting factor for size.At one point in early 2002, I briefly considered using the UNIX tape archive (tar) format to bundle assets in a Game Boy Advance game. Many of these assets were 2048 bytes or smaller. I looked up the spec for a POSIX tar file, and it involved rounding up each file's size to a multiple of the 512-byte block size and adding a 512-byte block header. That kind of overhead adds up. On top of that, searching for a particular file in a tarball takes linear time, not constant or even logarithmic time.That led me to devise and document a simpler, more fit for purpose archive format called GBFS. Other specialized archive formats may benefit from packing files so as to avoid crossing 16K, 32K, 64K, or 128K block boundaries in the medium.<a href="https://peoplemaking.games/tags/FileFormats" class="mention hashtag" rel="nofollow noopener" target="_blank">#FileFormats</a> <a href="https://peoplemaking.games/tags/gbadev" class="mention hashtag" rel="nofollow noopener" target="_blank">#gbadev</a> <a href="https://peoplemaking.games/tags/GameBoyAdvance" class="mention hashtag" rel="nofollow noopener" target="_blank">#GameBoyAdvance</a> <a href="https://peoplemaking.games/tags/FileFormat" class="mention hashtag" rel="nofollow noopener" target="_blank">#FileFormat</a> <a href="https://peoplemaking.games/tags/archives" class="mention hashtag" rel="nofollow noopener" target="_blank">#archives</a>

Peter B.<a href="https://mastodon.social/tags/FileFormat" class="mention hashtag" rel="nofollow noopener" target="_blank">#FileFormat</a> mysteries (episode 14):<a href="https://www.reparaturbonus.at/fileadmin/user_upload/pics/icons/mutterschluessel.png" rel="nofollow noopener" translate="no" target="_blank">https://www.reparaturbonus.at/fileadmin/user_upload/pics/icons/mutterschluessel.png</a>thx to <a href="https://mastodon.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mastodon.social/tags/gnu" class="mention hashtag" rel="nofollow noopener" target="_blank">#gnu</a> <a href="https://mastodon.social/tags/file" class="mention hashtag" rel="nofollow noopener" target="_blank">#file</a>-command: Found out it's actually a WebP named as PNG. 😉 🤯

Hacker NewsI'd like to take a moment to speak to you about the Adobe PSD format<a href="https://github.com/gco/xee/blob/4fa3a6d609dd72b8493e52a68f316f7a02903276/XeePhotoshopLoader.m" rel="nofollow noopener" translate="no" target="_blank">https://github.com/gco/xee/blob/4fa3a6d609dd72b8493e52a68f316f7a02903276/XeePhotoshopLoader.m</a><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/AdobePSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#AdobePSD</a> <a href="https://mastodon.social/tags/Adobe" class="mention hashtag" rel="nofollow noopener" target="_blank">#Adobe</a> <a href="https://mastodon.social/tags/Photoshop" class="mention hashtag" rel="nofollow noopener" target="_blank">#Photoshop</a> <a href="https://mastodon.social/tags/FileFormat" class="mention hashtag" rel="nofollow noopener" target="_blank">#FileFormat</a> <a href="https://mastodon.social/tags/GraphicDesign" class="mention hashtag" rel="nofollow noopener" target="_blank">#GraphicDesign</a> <a href="https://mastodon.social/tags/TechTalk" class="mention hashtag" rel="nofollow noopener" target="_blank">#TechTalk</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Folder or File format? What is Scrivener? <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/Marchintosh" class="mention hashtag" rel="nofollow noopener" target="_blank">#Marchintosh</a> <a href="https://digipres.club/tags/package" class="mention hashtag" rel="nofollow noopener" target="_blank">#package</a> <a href="https://preservation.tylerthorsted.com/2025/03/21/scrivener/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/03/21/scrivener/</a>

FaintdreamsHuh. Right this second is when I learned that the .mobi file format is owned by Amazon !👀🤨🤔<a href="https://en.m.wikipedia.org/wiki/Mobipocket" rel="nofollow noopener" translate="no" target="_blank">https://en.m.wikipedia.org/wiki/Mobipocket</a><a href="https://dice.camp/tags/Amazon" class="mention hashtag" rel="nofollow noopener" target="_blank">#Amazon</a> <a href="https://dice.camp/tags/Monopoly" class="mention hashtag" rel="nofollow noopener" target="_blank">#Monopoly</a> <a href="https://dice.camp/tags/Monopolies" class="mention hashtag" rel="nofollow noopener" target="_blank">#Monopolies</a> <a href="https://dice.camp/tags/FileFormat" class="mention hashtag" rel="nofollow noopener" target="_blank">#FileFormat</a> <a href="https://dice.camp/tags/Ebooks" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ebooks</a>

Martin Owens :inkscape:Hmmm, advice please.So; say you're a <a href="https://floss.social/tags/opensource" class="mention hashtag" rel="nofollow noopener" target="_blank">#opensource</a> <a href="https://floss.social/tags/vector" class="mention hashtag" rel="nofollow noopener" target="_blank">#vector</a> image editor and a volunteer pops in to help write a new compatibility to some proprietary <a href="https://floss.social/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a>.Say the volunteer makes progress and one day a brand new account claiming to be the founder at the <a href="https://floss.social/tags/proprietary" class="mention hashtag" rel="nofollow noopener" target="_blank">#proprietary</a> company of said format offering the volunteer a job.To me; this is clearly a way to foreclose work on compatibility. The <a href="https://floss.social/tags/foss" class="mention hashtag" rel="nofollow noopener" target="_blank">#foss</a> equiv of buying out a competitor.But how should the project moderate this kind of message?

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Camtasia, not Fantasia. <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/avpres" class="mention hashtag" rel="nofollow noopener" target="_blank">#avpres</a> <a href="https://preservation.tylerthorsted.com/2025/02/14/camtasia/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/02/14/camtasia/</a>

Thorsted<a href="https://digipres.club/tags/fileformat" class="mention hashtag" rel="nofollow noopener" target="_blank">#fileformat</a> Friday! Exploring Pro Tools Sessions. <a href="https://digipres.club/tags/digipres" class="mention hashtag" rel="nofollow noopener" target="_blank">#digipres</a> <a href="https://digipres.club/tags/macintosh" class="mention hashtag" rel="nofollow noopener" target="_blank">#macintosh</a> <a href="https://digipres.club/tags/avpres" class="mention hashtag" rel="nofollow noopener" target="_blank">#avpres</a> <a href="https://preservation.tylerthorsted.com/2025/01/10/pro-tools-sessions/" rel="nofollow noopener" translate="no" target="_blank">https://preservation.tylerthorsted.com/2025/01/10/pro-tools-sessions/</a>

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