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<span class="fxxl"><b>dvdisaster</b></span>
<i>Version 0.72.6 / 0.79 (devel-3)</i>
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<span class="fxxl"> </span><a href="http://dvdisaster.net/en/">To the Internet version</a>
<a href="../cs/howtos62.html"></a>
<a href="../de/howtos62.html"></a>
<a href="../ru/howtos62.html"></a>
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<span class="fs"><b>Contents</b></span>
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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 colspan=3><span class="fs"><a href="index.html">Overview</a></span></td></tr>
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<tr><td colspan=3><span class="fs"><a href="howtos.html">Howtos</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos60.html">The big picture</a></span></td></tr>
<tr><td></td><td style="vertical-align:top; font-size:small;">-</td><td><span class="fs"><a href="howtos61.html">error correction</a></span></td></tr>
<tr><td></td><td style="vertical-align:top; font-size:small;">-</td><td><span class="fs">correct usage</span></td></tr>
<tr><td></td><td style="vertical-align:top; font-size:small;">-</td><td><span class="fs"><a href="howtos63.html">incorrect usage</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos10.html">Scanning media for errors</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos20.html">Putting error correction data on a separate file</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos30.html">Putting error correction data on the medium</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos40.html">Recovering media images</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos50.html">Getting information about images and error correction data</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtos90.html">Testing image compatibility</a></span></td></tr>
<tr><td style="width:1%; vertical-align:top;">·</td><td colspan=2><span class="fs"><a href="howtosa0.html">Dialogs and buttons</a></span></td></tr>
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<h3 class="top">Using dvdisaster the right way</h3>
Let's demonstrate how Jane uses dvdisaster. <p>
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<td class="w15p">10. Feb. 2004</td>
<td class="w65x"><img src="../images/good-cd.png" alt="Icon: Good medium (without read errors)"></td>
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<td>Jane creates a new CD with important data.</td>
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<tr><td colspan="4"> <p> </td></tr>
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<td> </td>
<td><img class="valignt" src="../images/good-cd.png" alt="Icon: Good medium (without read errors)"></td>
<td><img class="valignt" src="../images/ecc.png" alt="Icon: Separate file with error correction data"></td>
<td>To protect the CD from data loss
<a href="howtos20.html">she creates error correction data with dvdisaster</a>.
She keeps both kinds of data for later usage.</td>
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<tr><td colspan="4"> <hr> </td></tr>
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<td>14. May 2005</td>
<td><img class="valignt" src="../images/good-cd.png" alt="Icon: Good medium (without read errors)"></td>
<td><img class="valignt" src="../images/ecc.png" alt="Icon: Separate file with error correction data"></td>
<td> Jane knows that during daily use not all data of her CD might be
accessed. So after a year has passed
she <a href="howtos10.html">scans the CD for read errors</a> to make sure
that it has not developed any defects in seldom used data regions. However
after one year the CD is still perfectly readable.</td>
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<tr><td colspan="4"> <hr> </td></tr>
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<td>19. Aug 2007</td>
<td><img class="valignt" src="../images/bad-cd.png" alt="Icon: Damaged medium (partially unreadable)"></td>
<td><img class="valignt" src="../images/ecc.png" alt="Icon: Separate file with error correction data"></td>
<td>Two more years have passed and Jane notices that some data on the
CD is no longer readable. A <a href="howtos10.html">scan for read errors</a>
confirms that the CD has become defective due to aging.</td>
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<td align="right"><a href="howtos42.html#a">read</a></td>
<td align="center"><img class="valignt" src="../images/down-arrow.png" alt="Icon: Arrow down"></td>
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<tr><td colspan="4"> <p> </td></tr>
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<td> </td>
<td><img class="valignt" src="../images/bad-image.png" alt="Icon: Partial image"></td>
<td><img class="valignt" src="../images/ecc.png" alt="Icon: Separate file with error correction data"></td>
<td>Jane uses dvdisaster to <a href="howtos42.html#a">read as much sectors
as possible</a> from the defective CD into an ISO image.</td>
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<td align="right"><a href="howtos42.html#b">reconstruct</a></td>
<td align="center" colspan="2"><img class="valignt" src="../images/dbl-arrow-left.png" alt="Icon: Double arrow left"></td>
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<tr><td colspan="4"> <p> </td></tr>
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<td> </td>
<td><img class="valignt" src="../images/good-image.png" alt="Icon: Complete image"></td>
<td><img class="valignt" src="../images/ecc.png" alt="Icon: Separate file with error correction data"></td>
<td>By using the error correction data Jane
<a href="howtos42.html#b">recovers the missing parts in the ISO image</a>.
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<td align="right">Write new CD</td>
<td align="center"><img class="valignt" src="../images/down-arrow.png" alt="Icon: Arrow down"></td>
<td></td><td></td>
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<tr><td colspan="4"> <p> </td></tr>
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<td> </td>
<td><img class="valignt" src="../images/good-cd.png" alt="Icon: Good medium (without read errors)"></td>
<td><img class="valignt" src="../images/ecc.png" alt="Icon: Separate file with error correction data"></td>
<td>Jane writes a new CD from the recovered ISO image. She keeps the
error correction data for the new CD as it may also become defective
in the future.</td>
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<span class="fs">
<i> Copyright 2004-2014 Carsten Gnörlich.<br>
Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.
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distrib
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Mageia
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5
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i586
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media
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core-release
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files
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850
