<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>dvdisaster</title>
<link rel="stylesheet" type="text/css" href="../include/dvdisaster.css">
</head>
<body>
<!--- Title header --->
<table width="100%" cellpadding="0" border="0">
<tr>
<td align="left">
<font size="+3"><b>dvdisaster</b></font>
<i>Version 0.72 (pl1)</i>
</td>
<td align="right">
<font size="+3"> </font><a href="http://dvdisaster.net/en/">To the Internet version</a>
<a href="../de/index.html"></a>
<a href="../ru/index.html"></a>
</td>
</tr>
</table>
<!--- Language chooser or separator --->
<table width="100%" cellpadding="0" border="0">
<tr bgcolor="#000000">
<td colspan="2" width="100%"><img width=1 height=1 alt=""></td>
</tr>
<tr><td colspan="2" width="100%" height="10">
<img width=1 height=1 alt="">
</td></tr>
</table>
<!--- Main body (Navigation, actual page content, optional news column) --->
<table width="100%" cellspacing=0>
<tr>
<!--- Navigation --->
<td bgcolor="#f0f0f0" valign="top" width="20%">
<table width="100%" cellpadding="10">
<tr>
<td>
<font size="-1"><b>Contents</b></font>
<table width="100%" cellpadding="0" cellspacing="0">
<tr bgcolor="#000000">
<td width="100%"><img width=1 height=1 alt=""></td>
</tr>
</table><p>
<table width="100%">
<tr><td colspan=3><font size="-1"><a href="news.html">News</a></font></td></tr>
<tr><td></td><td></td><td height="10"></td></tr>
<tr><td colspan=3><font size="-1">Overview</font></td></tr>
<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="index10.html">Examples of the error correction</a></font></td></tr>
<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="index20.html">dvdisaster complements quality scans</a></font></td></tr>
<tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="index30.html">Pro and con of dvdisaster</a></font></td></tr>
<tr><td></td><td></td><td height="10"></td></tr>
<tr><td colspan=3><font size="-1"><a href="howtos.html">Howtos</a></font></td></tr>
<tr><td></td><td></td><td height="10"></td></tr>
<tr><td colspan=3><font size="-1"><a href="download.html">Download</a></font></td></tr>
<tr><td></td><td></td><td height="10"></td></tr>
<tr><td colspan=3><font size="-1"><a href="qa.html">Questions and Answers</a></font></td></tr>
<tr><td></td><td></td><td height="10"></td></tr>
<tr><td colspan=3><font size="-1"><a href="feedback.html">Bug reporting</a></font></td></tr>
</table>
</td>
</tr>
</table>
</td>
<td></td>
<!--- Actual page contents --->
<td valign="top" width="57%" rowspan="2">
<!--- Insert actual page content here --->
<h3>The dvdisaster project:</h3>
CD, DVD and BD media keep their data only for a finite time (typically for many years).
After that time, data loss develops slowly with read errors
growing from the outer media region towards the inside.<p>
<b>Archival with data loss protection</b><p>
dvdisaster stores data on CD/DVD/BD (<a href="qa10.html#media">supported media</a>)
in a way that it is fully recoverable even after some read errors have developed.
This enables you to rescue the complete data to a new medium.<p>
Data loss is prevented by
using error correcting codes.
Error correction data is either added to the medium or kept in separate
error correction files. dvdisaster works at
the image level so that the recovery
does not depend on the file system of the medium.
The maximum error correction capacity is user-selectable.<p>
<b>Common misunderstandings about dvdisaster:</b>
<ul>
<li>dvdisaster can not make defective media readable again.
Contents of a defective medium can <i>not</i> be recovered without the
error correction data.<p></li>
<li><img src="images/exclude_from_search_terms.png" align="middle"><br>
Such functions are outside the scope of dvdisaster's internal design and goals.</li>
</ul>
<p>
<a href="index10.html">Examples of the error correction...</a>
</td> <!--- end of page contents --->
<!--- news flash column --->
<td></td>
<td bgcolor="#e0e0ff" valign="top" width="20%">
<table width="100%" cellpadding="10"><tr><td>
<font size="-1"><b>News</b></font>
<table width="100%" cellpadding="0" cellspacing="0">
<tr bgcolor="#000000">
<td width="100%"><img width=1 height=1 alt=""></td>
</tr>
</table><p>
<table width="100%">
<tr><td>
<font size="-1">08.08.2009</font> <br>
<font size="-1">
<a href="news.html#item1">dvdisaster 0.72.1 released</a>
</font><p>
<font size="-1">04.07.2009</font> <br>
<font size="-1">
<a href="news.html#item2">dvdisaster 0.72 released</a>
</font><p>
<font size="-1">14.04.2009</font> <br>
<font size="-1">
<a href="news.html#item3">Added: dvdisaster 0.72.rc1 for Mac OS X</a>
</font><p>
<font size="-1">11.04.2009</font> <br>
<font size="-1">
<a href="news.html#item4">dvdisaster 0.72.rc1 released</a>
</font><p>
<font size="-1">08.03.2009</font> <br>
<font size="-1">
<a href="news.html#item5">dvdisaster 0.71.28 released</a>
</font><p>
<font size="-1">18.01.2009</font> <br>
<font size="-1">
<a href="news.html#item6">dvdisaster 0.71.27 released</a>
</font><p>
</td></tr>
</table>
</table>
</td> <!--- end of news flash column--->
</tr>
<tr valign="bottom">
<td bgcolor="#f0f0f0">
<table cellpadding="10"><tr><td><a href="http://dvdisaster.net/legacy/en/index.html"><font size="-1">Old documentation (V0.70)</font></a></td></tr></table>
</td>
<td></td>
<td></td>
</tr>
</table> <!--- end of main body table --->
<!--- Page footer --->
<table width="100%" cellpadding="0" border="0">
<tr><td colspan="2" width="100%" height="10"><img width=1 height=1 alt=""></td>
</tr>
<tr bgcolor="#000000"><td colspan="2" width="100%"><img width=1 height=1 alt=""></td>
</tr>
<tr>
<td align="center">
<font size="-1">
<i> Copyright 2004-2009 Carsten Gnörlich.<br>
Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.
</i>
</font>
</td>
</tr>
<tr bgcolor="#000000"><td colspan="2" width="100%"><img width=1 height=1 alt=""></td>
</tr>
</table>
</body>
</html>
distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
93f0f6b9dba72659e97f5e08b2db3f56
>
files
>
1777
