<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/qa.html"></a> <a href="../ru/qa.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></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">Questions and Answers</font></td></tr> <tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="qa10.html">Technical Questions</a></font></td></tr> <tr><td valign="top" width="1%">·</td><td colspan=2><font size="-1"><a href="qa20.html">Error messages</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"> <!--- Insert actual page content below ---> <h3><a name="top">General questions and answers</a></h3> <a href="qa.html#pronounce">1.1 How is "dvdisaster" pronounced?</a><p> <a href="qa.html#pipo">1.2 What are quality scans and why don't you support more?</a><p> <a href="qa.html#compat">1.3 Is dvdisaster compatible with future releases?</a><p> <hr><p> <b><a name="pronounce">1.1 How is "dvdisaster" pronounced?</a></b><p> Since the word stems from the english language, simply spell "dv" before saying "disaster". Perhaps "dee-vee-disaster" is a suitable phonetic circumscription. <div align=right><a href="qa.html#top">↑</a></div> <b><a name="pipo">1.2 What are quality scans and why don't you support more?</a></b><p> Optical media have a built-in error correction which is similar to the method used in dvdisaster. Some drives can report the number of errors corrected while reading a medium. This provides a rough estimate of the writing and media qualities.<p> Since dvdisaster is free software, it can only include code and information which can be redistributed freely. This is currently true for C2 <a href="howtos10.html">scanning</a> of CD media, which is officially standardized and has free documentation available.<p> On the other hand, DVD quality scans ("PI/PO scans") are not standardized. Those drive vendors who support it are using proprietary programming interfaces. The respective specifications seem not to be available for use in free software. So we must patiently wait until manufacturers understand that having free software available for a drive will sell more drives. <p> <div align=right><a href="qa.html#top">↑</a></div> <b><a name="compat">1.3 Is dvdisaster compatible with future releases?</a></b><p> Yes, dvdisaster files are intended for an archival time of many years. When upgrading to a newer version of dvdisaster you can continue using images and error correction data created from previous versions. There is <i>no</i> need to recreate them again. <div align=right><a href="qa.html#top">↑</a></div><p> <!--- 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>