162 lines
7.0 KiB
HTML
162 lines
7.0 KiB
HTML
<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Testing image compatibility</title>
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<link rel="stylesheet" type="text/css" href="../include/dvdisaster.css">
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</head>
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<body>
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<!--- Title header --->
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<table width="100%" cellpadding="0" border="0">
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<tr>
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<td align="left">
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<font size="+3"><b>dvdisaster</b></font>
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<i>Version 0.72.2 / 0.79 (devel-3)</i>
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</td>
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<td align="right">
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<font size="+3"> </font><a href="http://dvdisaster.net/en/">To the Internet version</a>
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<a href="../de/howtos90.html"></a>
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<a href="../ru/howtos90.html"></a>
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</td>
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</tr>
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</table>
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<!--- Language chooser or separator --->
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<table width="100%" cellpadding="0" border="0">
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<tr bgcolor="#000000">
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<td colspan="2" width="100%"><img width=1 height=1 alt=""></td>
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</tr>
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<tr><td colspan="2" width="100%" height="10">
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<img width=1 height=1 alt="">
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</td></tr>
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</table>
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<!--- Main body (Navigation, actual page content, optional news column) --->
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<table width="100%" cellspacing=0>
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<tr>
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<!--- Navigation --->
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<td bgcolor="#f0f0f0" valign="top" width="20%">
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<table width="100%" cellpadding="10">
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<tr>
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<td>
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<font size="-1"><b>Contents</b></font>
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<table width="100%" cellpadding="0" cellspacing="0">
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<tr bgcolor="#000000">
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<td width="100%"><img width=1 height=1 alt=""></td>
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</tr>
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</table><p>
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<table width="100%">
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<tr><td colspan=3><font size="-1"><a href="news.html">News</a></font></td></tr>
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<tr><td></td><td></td><td height="10"></td></tr>
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<tr><td colspan=3><font size="-1"><a href="index.html">Overview</a></font></td></tr>
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<tr><td></td><td></td><td height="10"></td></tr>
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<tr><td colspan=3><font size="-1"><a href="howtos.html">Howtos</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtos60.html">The big picture</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtos10.html">Scanning media for errors</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtos20.html">Putting error correction data on a separate file</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtos30.html">Putting error correction data on the medium</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtos40.html">Recovering media images</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtos50.html">Getting information about images and error correction data</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1">Testing image compatibility</font></td></tr>
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<tr><td valign="top"></td><td>-</td><td><font size="-1"><a href="howtos91.html">with error correction files</a></font></td></tr>
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<tr><td valign="top"></td><td>-</td><td><font size="-1"><a href="howtos92.html">when augmenting images with error correction data</a></font></td></tr>
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<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="howtosa0.html">Dialogs and buttons</a></font></td></tr>
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<tr><td></td><td></td><td height="10"></td></tr>
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<tr><td colspan=3><font size="-1"><a href="download.html">Download</a></font></td></tr>
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<tr><td></td><td></td><td height="10"></td></tr>
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<tr><td colspan=3><font size="-1"><a href="qa.html">Questions and Answers</a></font></td></tr>
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<tr><td></td><td></td><td height="10"></td></tr>
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<tr><td colspan=3><font size="-1"><a href="feedback.html">Bug reporting</a></font></td></tr>
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</table>
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</td>
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</tr>
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</table>
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</td>
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<td></td>
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<!--- Actual page contents --->
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<td valign="top" width="77%" rowspan="2">
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<!--- Insert actual page content below --->
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<h3>Testing image compatibility</h3>
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<b>Why dvdisaster uses ISO images.</b>
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Some dvdisaster functions work on image files stored on hard disk.
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CD/DVD/BD drives are too slow for carrying out the required access
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patterns, and they would wear out quickly. However hard disks are designed
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for this type of access, and they do them quickly and without wear.<p>
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<b>Testing image compatibility is important.</b>
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During the work with dvdisaster you can (and sometimes must) use ISO images
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which have been created by third-party software. Unfortunately ISO images
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are only informally standardized. Typically all programs will produce
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the same images when advised to use the ".iso" file format, but it is
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better to make sure that a usable ISO image has been created:
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Processing a non-iso image with dvdisaster will result in
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unusable error correction data. Especially, formats like
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<b>.nrg are not suitable</b> for processing with dvdisaster.
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<p>
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<b>Possible scenarios.</b> The following situations require exchanging
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ISO images between dvdisaster and a third party software:<p>
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<b>a) Creating error correction files from ISO images made by a CD authoring software</b><p>
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A CD/DVD/BD authoring software is used to create an ISO image.
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This image is used for writing the medium and for creating the
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error correction file. When using the authoring software for the first time
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with dvdisaster, make sure that
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the <a href="howtos91.html">image was written to the medium without
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modifications</a>.<p>
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<b>b) Augmenting ISO images with error correction data</b><p>
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dvdisaster adds "invisible" error correction data to the medium in order to
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minimize interference with other applications.
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Therefore it is possible that some CD/DVD/BD writing software will not properly
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write the error correction data to the medium. Make sure that your writing
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software does <a href="howtos92.html">correctly transfer the error correction data</a> when using it with augmented images for the first time.
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<!--- do not change below --->
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</td> <!--- end of page contents --->
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</tr>
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<!---
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<tr valign="bottom">
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<td bgcolor="#f0f0f0">
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<table cellpadding="10"><tr><td><a href="http://dvdisaster.net/legacy/en/index.html"><font size="-1"></font></a></td></tr></table>
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</td>
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<td></td>
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<td></td>
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</tr>
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--->
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</table> <!--- end of main body table --->
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<!--- Page footer --->
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<table width="100%" cellpadding="0" border="0">
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<tr><td colspan="2" width="100%" height="10"><img width=1 height=1 alt=""></td>
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</tr>
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<tr bgcolor="#000000"><td colspan="2" width="100%"><img width=1 height=1 alt=""></td>
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</tr>
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<tr>
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<td align="center">
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<font size="-1">
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<i> Copyright 2004-2010 Carsten Gnörlich.<br>
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Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.
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</i>
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</font>
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</td>
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</tr>
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<tr bgcolor="#000000"><td colspan="2" width="100%"><img width=1 height=1 alt=""></td>
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</tr>
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</table>
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</body>
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</html>
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