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		<id>https://gunkies.org/index.php?action=history&amp;feed=atom&amp;title=Computer_media_images</id>
		<title>Computer media images - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://gunkies.org/index.php?action=history&amp;feed=atom&amp;title=Computer_media_images"/>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=Computer_media_images&amp;action=history"/>
		<updated>2026-05-11T16:44:06Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.30.1</generator>

	<entry>
		<id>https://gunkies.org/w/index.php?title=Computer_media_images&amp;diff=32018&amp;oldid=prev</id>
		<title>Jnc: Jnc moved page Computer Media Images to Computer media images: Standard article naming case</title>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=Computer_media_images&amp;diff=32018&amp;oldid=prev"/>
				<updated>2023-12-02T16:27:38Z</updated>
		
		<summary type="html">&lt;p&gt;Jnc moved page &lt;a href=&quot;/wiki/Computer_Media_Images&quot; class=&quot;mw-redirect&quot; title=&quot;Computer Media Images&quot;&gt;Computer Media Images&lt;/a&gt; to &lt;a href=&quot;/wiki/Computer_media_images&quot; title=&quot;Computer media images&quot;&gt;Computer media images&lt;/a&gt;: Standard article naming case&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 16:27, 2 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; style=&quot;text-align: center;&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Jnc</name></author>	</entry>

	<entry>
		<id>https://gunkies.org/w/index.php?title=Computer_media_images&amp;diff=30705&amp;oldid=prev</id>
		<title>Vaxorcist: Link added</title>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=Computer_media_images&amp;diff=30705&amp;oldid=prev"/>
				<updated>2023-07-31T16:50:37Z</updated>
		
		<summary type="html">&lt;p&gt;Link added&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 16:50, 31 July 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l31&quot; &gt;Line 31:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 31:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Raw data images in logical/LBN order (independent of interleaving)&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Raw data images in logical/LBN order (independent of interleaving)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;SIMH for example expects images in logical order, whereas Xhomer depends on sector order. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;SIMH for example expects images in logical order, whereas &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[&lt;/ins&gt;Xhomer&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] &lt;/ins&gt;depends on sector order. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Imaging tools/toolkits ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Imaging tools/toolkits ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

&lt;!-- diff cache key mediawiki-wiki_:diff:version:1.11a:oldid:30700:newid:30705 --&gt;
&lt;/table&gt;</summary>
		<author><name>Vaxorcist</name></author>	</entry>

	<entry>
		<id>https://gunkies.org/w/index.php?title=Computer_media_images&amp;diff=30700&amp;oldid=prev</id>
		<title>Vaxorcist: New page &quot;Computer Media Images&quot;</title>
		<link rel="alternate" type="text/html" href="https://gunkies.org/w/index.php?title=Computer_media_images&amp;diff=30700&amp;oldid=prev"/>
				<updated>2023-07-31T14:25:23Z</updated>
		
		<summary type="html">&lt;p&gt;New page &amp;quot;Computer Media Images&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;When working with computer [[simulator]]s (e.g. [[SIMH]]), you usually use images of computer media instead of real ones. (Well, some simulators can even be run with real media, too.)&lt;br /&gt;
&lt;br /&gt;
Another scenario is preservation and copying of old computer media.&lt;br /&gt;
&lt;br /&gt;
There are:&lt;br /&gt;
* [[Floppy disk]] images&lt;br /&gt;
* [[Hard disk]] images&lt;br /&gt;
* [[Magnetic tape]] images&lt;br /&gt;
* [[Paper tape]] images&lt;br /&gt;
* [[Punched card]] images&lt;br /&gt;
* etc.&lt;br /&gt;
&lt;br /&gt;
The multitude of image formats as well as their characteristics can sometimes be really confusing.&lt;br /&gt;
&lt;br /&gt;
I'll try to shed some light on some common image media formats and manipulation tools.&lt;br /&gt;
&lt;br /&gt;
== Image format basics ==&lt;br /&gt;
&lt;br /&gt;
Regardless of the media involved, two basic types of images can be distinguished:&lt;br /&gt;
&lt;br /&gt;
* Raw data images&lt;br /&gt;
* Images containing additional metadata and/or using compression &lt;br /&gt;
&lt;br /&gt;
Both types have their specific pros and cons and areas of application.&lt;br /&gt;
&lt;br /&gt;
Raw data images are mainly used with simulators, whereas &amp;quot;metadata enriched&amp;quot; images are more common for data preservation and copying of computer media.&lt;br /&gt;
&lt;br /&gt;
Raw data images have two subvariants:&lt;br /&gt;
&lt;br /&gt;
* Raw data images in sector/physical order (dependent on [[sector interleaving]] applied)&lt;br /&gt;
* Raw data images in logical/LBN order (independent of interleaving)&lt;br /&gt;
&lt;br /&gt;
SIMH for example expects images in logical order, whereas Xhomer depends on sector order. &lt;br /&gt;
&lt;br /&gt;
== Imaging tools/toolkits ==&lt;br /&gt;
&lt;br /&gt;
=== Linux dd ===&lt;br /&gt;
&lt;br /&gt;
=== Teledisk ===&lt;br /&gt;
&lt;br /&gt;
=== ImageDisk ===&lt;br /&gt;
&lt;br /&gt;
[http://dunfield.classiccmp.org/img| ImageDisk]&lt;br /&gt;
&lt;br /&gt;
=== SAMdisk ===&lt;br /&gt;
&lt;br /&gt;
[https://simonowen.com/samdisk| SAMdisk]&lt;br /&gt;
&lt;br /&gt;
== Conversion tools ==&lt;br /&gt;
&lt;br /&gt;
=== imd2raw ===&lt;br /&gt;
&lt;br /&gt;
=== lbn2rx50 ===&lt;br /&gt;
&lt;br /&gt;
== Further Reading ==&lt;br /&gt;
&lt;br /&gt;
* [https://retrocmp.de/fdd/general/disk-imaging.pdf| Disk Imaging Techniques]&lt;br /&gt;
&lt;br /&gt;
{{semi-stub}}&lt;br /&gt;
[[Category: Media]]&lt;br /&gt;
[[Category: Emulators]]&lt;/div&gt;</summary>
		<author><name>Vaxorcist</name></author>	</entry>

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