195 lines
7.1 KiB
HTML
195 lines
7.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<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>Overview</title>
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<link rel="stylesheet" type="text/css" href="../include/dvdisaster.css">
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<link rel="alternate" type="application/atom+xml" href="http://dvdisaster.net/en/feed/atom.xml" title="dvdisaster news">
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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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<span class="fxxl"><b>dvdisaster</b></span>
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<i>Version 0.72.4 / 0.72 (pl4)</i>
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</td>
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<td align="right">
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<span class="fxxl"> </span><a href="http://dvdisaster.net/en/">To the Internet version</a>
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<a href="../cs/index.html"></a>
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<a href="../de/index.html"></a>
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<a href="../ru/index.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>
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<td colspan="2" class="hsep"></td>
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</tr>
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<tr><td colspan="2" style="height: 10px">
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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 style="background-color:#f0f0f0; vertical-align: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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<span class="fs"><b>Contents</b></span>
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<table width="100%" cellpadding="0" cellspacing="0">
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<tr>
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<td class="hsep"></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><span class="fs"><a href="news.html">News</a></span></td></tr>
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<tr><td></td><td></td><td style="height:10px;"></td></tr>
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<tr><td colspan=3><span class="fs">Overview</span></td></tr>
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<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="index10.html">Examples of the error correction</a></span></td></tr>
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<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="index20.html">dvdisaster complements quality scans</a></span></td></tr>
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<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="index30.html">Pro and con of dvdisaster</a></span></td></tr>
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<tr><td></td><td></td><td style="height:10px;"></td></tr>
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<tr><td colspan=3><span class="fs"><a href="howtos.html">Howtos</a></span></td></tr>
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<tr><td></td><td></td><td style="height:10px;"></td></tr>
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<tr><td colspan=3><span class="fs"><a href="download.html">Download</a></span></td></tr>
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<tr><td></td><td></td><td style="height:10px;"></td></tr>
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<tr><td colspan=3><span class="fs"><a href="qa.html">Questions and Answers</a></span></td></tr>
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<tr><td></td><td></td><td style="height:10px;"></td></tr>
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<tr><td colspan=3><span class="fs"><a href="feedback.html">Bug reporting</a></span></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 style="vertical-align:top; width:57%;" rowspan="2">
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<!-- Insert actual page content here -->
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<h3 class="top">The dvdisaster project:</h3>
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Optical media (CD,DVD,BD) keep their data only for a
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finite time (typically for many years).
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After that time, data loss develops slowly with read errors
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growing from the outer media region towards the inside.<p>
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<b>Archival with data loss protection</b><p>
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dvdisaster stores data on CD/DVD/BD (<a href="qa10.html#media">supported media</a>)
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in a way that it is fully recoverable even after some read errors have developed.
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This enables you to rescue the complete data to a new medium.<p>
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Data loss is prevented by
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using error correcting codes.
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Error correction data is either added to the medium or kept in separate
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error correction files. dvdisaster works at
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the image level so that the recovery
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does not depend on the file system of the medium.
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The maximum error correction capacity is user-selectable.<p>
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<b>Common misunderstandings about dvdisaster:</b>
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<ul>
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<li>dvdisaster can not make defective media readable again.
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Contents of a defective medium can <i>not</i> be recovered without the
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error correction data.<p></li>
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<li><img src="images/exclude_from_search_terms.png" alt="" class="valignm"><br>
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Such functions are outside the scope of dvdisaster's internal design and goals.</li>
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</ul>
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<p>
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<a href="index10.html">Examples of the error correction...</a>
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</td> <!-- end of page contents -->
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<!-- news flash column -->
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<td></td>
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<td style="background-color:#e0e0ff; width:20%;" valign="top">
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<table width="100%" cellpadding="10"><tr><td>
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<span class="fs"><b>News</b></span>
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<a href="http://dvdisaster.net/en/feed/atom.xml"><img src="../images/atom16.png" alt="Subscribe to dvdisaster news feed" class="noborder"></a>
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<table width="100%" cellpadding="0" cellspacing="0">
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<tr>
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<td class="hsep"></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>
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<span class="fs">07.04.2012</span> <br>
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<span class="fs">
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<a href="news.html#item21">dvdisaster 0.72.4 released</a>
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</span><p>
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<span class="fs">05.10.2011</span> <br>
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<span class="fs">
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<a href="news.html#item20">dvdisaster 0.72.3 released</a>
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</span><p>
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<span class="fs">28.07.2011</span> <br>
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<span class="fs">
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<a href="news.html#item19">Documentation added</a>
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</span><p>
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<span class="fs">21.11.2010</span> <br>
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<span class="fs">
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<a href="news.html#item18">dvdisaster 0.79.3 released</a>
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</span><p>
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<span class="fs">07.11.2010</span> <br>
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<span class="fs">
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<a href="news.html#item17">Added Windows and Mac OS X versions for 0.72.2</a>
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</span><p>
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<span class="fs">31.10.2010</span> <br>
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<span class="fs">
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<a href="news.html#item16">dvdisaster 0.72.2 released</a>
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</span><p>
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<span class="fs">28.02.2010</span> <br>
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<span class="fs">
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<a href="news.html#item15">dvdisaster 0.79.2 released</a>
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</span><p>
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</td></tr>
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</table>
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</table>
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</td> <!-- end of news flash column-->
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</tr>
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<!--
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<tr valign="bottom">
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<td style="background-color:#f0f0f0;">
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<table cellpadding="10"><tr><td><a href="http://dvdisaster.net/legacy/en/index.html"><span class="fs"></span></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" style="width:100%; height:10px;"></td>
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</tr>
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<tr><td colspan="2" class="hsep"></td>
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</tr>
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<tr>
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<td align="center">
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<span class="fs">
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<i> Copyright 2004-2012 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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</span>
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</td>
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</tr>
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<tr><td colspan="2" class="hsep"></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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