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Imported Upstream version 0.72

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TANIGUCHI Takaki
2009-11-21 16:29:02 +09:00
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<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Overview</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</i>
</td>
<td align="right">
<font size="+3">&nbsp;</font><a href="http://dvdisaster.net/en/">To the Internet version</a>
<a href="../de/howtos42.html"></a>
<a href="../ru/howtos42.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"><a href="index.html">Overview</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 valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos60.html">The big picture</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos10.html">Scanning media for errors</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos20.html">Putting error correction data on a separate file</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos30.html">Putting error correction data on the medium</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos40.html">Recovering media images</a></font></td></tr>
<tr><td valign="top"></td><td>-</td><td><font size="-1"><a href="howtos41.html">Basic settings</a></font></td></tr>
<tr><td valign="top"></td><td>-</td><td><font size="-1">Recovering the image</font></td></tr>
<tr><td valign="top"></td><td>-</td><td><font size="-1"><a href="howtos43.html">Advanced settings</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos50.html">Getting information about images and error correction data</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtos90.html">Testing image compatibility</a></font></td></tr>
<tr><td valign="top" width="1%">&middot;</td><td colspan=2><font size="-1"><a href="howtosa0.html">Dialogs and buttons</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="77%" rowspan="2">
<table width="100%" bgcolor="#f0f0f0">
<tr><td><font size="+1"><b>Recovering media images</b></font></td>
<td rowspan="2" align="right"><img src="images/fix-icon.png"></td></tr>
<tr><td><i>Walkthrough</i></td></tr>
</table><p>
<!--- Insert actual page content below --->
Please make sure that dvdisaster has been configured as described in the
<a href="howtos41.html">basic settings</a> section.
Then perform the following steps:<p>
<hr>
<a name="a"></a>
<table>
<tr>
<td width="200px" align="center"><img src="../images/slot-in.png">
<br><img src="../images/down-arrow.png"></td>
<td>&nbsp;&nbsp;</td>
<td valign="top"><b>Insert the defective medium into a drive</b>
which is directly connected to your computer. You can not use network drives,
software drives and drives inside virtual machines.</td>
</tr>
</table>
<table>
<tr>
<td width="200px" align="center"><img src="../images/winbrowser.png">
<br><img src="../images/down-arrow.png"></td>
<td>&nbsp;&nbsp;</td>
<td valign="top"><b>Close any windows</b> which may be opened by your operating system
for viewing or performing the medium contents.
Wait until the drive has recognized the medium and the medium has spun down.</td>
</tr>
</table>
<table>
<tr>
<td width="200px" align="center"><a href="howtosa1.html">
<img src="../images/select-drive.png" border="0">
<br><img src="../images/down-arrow.png" border="0"></a></td>
<td>&nbsp;&nbsp;</td>
<td valign="top"><b>Select the drive</b> containing the defective medium
in dvdisasters drop down menu.</td>
</tr>
</table>
<table>
<tr>
<td width="200px"align="center">
<img src="../images/select-ecc.png" border="0" align="center"></a></td>
<td>&nbsp;&nbsp;</td>
<td valign="top">
If you are using <a href="howtos20.html">error correction files</a>
enter the file name in the shown field.
Leave this entry blank when the medium has been
<a href="howtos30.html">augmented with error correction data</a>.<br>
</td>
</tr>
<td width="200px" align="center"><a href="howtosa1.html">
<img src="../images/down-arrow.png" border="0"></a></td>
</table>
<table>
<tr>
<td width="200px" align="center">
<a href="howtosa4.html">
<img src="images/read-icon.png" border="0">
<br><img src="../images/down-arrow.png" border="0"></a></td>
<td>&nbsp;&nbsp;</td>
<td valign="top"><b>Click the "Read" button</b> to start the reading process.</td>
</tr>
</table>
<!--- begin of screen shot --->
<table>
<tr>
<td width="200px" align="center">
<a name="snap1"></a>
<a href="howtos42_expand=1.html#snap1"> <img src="thumbnails/adaptive-progress.png" border="0">
</a>
</td><td>&nbsp; &nbsp;</td>
<td valign="top">
<b>Watch the reading process progress.</b>
The adaptive reading strategy performs a systematic search for readable
sectors. You will observe temporary gaps which will be closed in later
stages. Usually this effect is less pronounced as shown in the screen shot. If all defective
sectors are located at the end of the medium the reading process may even stop before touching
the first defective sector.
</td>
</tr>
</table><p>
<!--- end of screen shot --->
<p>
<table>
<tr>
<td width="200px" align="center">
<img src="../images/down-arrow.png" border="0"></a></td>
</tr>
</table>
<!--- begin of screen shot --->
<table>
<tr>
<td width="200px" align="center">
<a name="snap2"></a>
<a href="howtos42_expand=2.html#snap2"> <img src="thumbnails/adaptive-success.png" border="0">
</a>
</td><td>&nbsp; &nbsp;</td>
<td valign="top">
<b>The next actions depend on the outcome of the reading process.</b>
The reading process terminates automatically when enough data for a successful recovery
has been gathered (compare the output marked in green). In that case continue the recovery
by clicking on the "Fix" button as described below.
</td>
</tr>
</table><p>
<!--- end of screen shot --->
<!--- begin of screen shot --->
<table>
<tr>
<td width="200px" align="center">
<a name="snap3"></a>
<a href="howtos42_expand=3.html#snap3"> <img src="thumbnails/adaptive-failure.png" border="0">
</a>
</td><td>&nbsp; &nbsp;</td>
<td valign="top">
The reading process will also abort if it could not find enough readable sectors
(see the output marked in red). The image is <b>not</b> yet recoverable in this incomplete state.
Please try to gather additional data following the tips shown in
<a href="howtos43.html">advanced settings</a>.
</td>
</tr>
</table><p>
<!--- end of screen shot --->
<table>
<tr>
<td width="200px" align="center"><img src="../images/down-arrow.png" border="0"></td>
<td></td><td></td>
</tr>
<a name="b"></a>
<tr>
<td width="200px" align="center"><a href="howtosa4.html">
<img src="images/fix-icon.png" border="0">
</td>
<td>&nbsp;&nbsp;</td>
<td valign="top">Click the "Fix" button to begin the
<b>image recovery</b> (works <b>only</b> if the above reading process stated success!).</td>
</tr>
<tr>
<td width="200px" align="center"><img src="../images/down-arrow.png" border="0"></td>
<td></td><td></td>
</tr>
</table>
<!--- begin of screen shot --->
<table>
<tr>
<td width="200px" align="center">
<a name="snap4"></a>
<a href="howtos42_expand=4.html#snap4"> <img src="thumbnails/fix-success.png" border="0">
</a>
</td><td>&nbsp; &nbsp;</td>
<td valign="top">
<b>Watch the progress of the recovery.</b> The adaptive reading will stop as soon
as enough data has been collected for a successful recovery; therefore the error correction will
always be loaded to the max. This causes the display of the massive red area in the "Errors/Ecc block"
graph and is no cause for worry. Depending on the medium size and your system speed the recovery may take
several minutes to hours.
</td>
</tr>
</table><p>
<!--- end of screen shot --->
<table>
<tr>
<td width="200px"align="center">
<img src="../images/down-arrow.png" border="0">
</td>
</tr>
</table>
<table>
<tr>
<td width="200px"align="center">
<img src="../images/good-image.png" border="0" align="center"></a></td>
<td>&nbsp;&nbsp;</td>
<td valign="top">After the recovery finishes all data in the ISO image will be complete again.
</td>
</tr>
</table>
<table>
<tr>
<td width="200px"align="center">
<img src="../images/down-arrow.png" border="0">
</td>
</tr>
</table>
<table>
<tr>
<td width="200px" align="center">
<a href="howtos33_way=2.html#c">
<img src="thumbnails/write-iso1.png" border="0"></a></td>
<td>&nbsp;&nbsp;</td>
<td valign="top"><b>Write the recovered ISO image</b>
to a new medium. Perform the same steps as described in the section
about <a href="howtos33_way=2.html#c">writing media</a> which have been
<a href="howtos33.html">augmented with error correction data</a>.
</td>
</tr>
</table>
<table>
<tr>
<td width="200px"align="center">
<img src="../images/down-arrow.png" border="0">
</td>
</tr>
</table>
<table>
<tr>
<td width="200px"align="center">
<img src="../images/old-cd.png" border="0" align="center">
<img src="../images/old-image.png" border="0" align="center">
<img src="../images/good-cd.png" border="0" align="center"></a></td>
<td>&nbsp;&nbsp;</td>
<td valign="top">Now you have created a new medium containing the fully recovered data.
Make sure to <a href="howtos10.html">check it for read errors</a>.
Then you can discard the defective medium and delete the ISO image. However if you have created
an error correction file for the old medium then you can keep it to protect the newly
created medium.
</td>
</tr>
</table>
<!--- do not change below --->
</td> <!--- end of page contents --->
</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>