411 lines
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411 lines
16 KiB
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<TITLE>The Answer Guy 31: DAO software for linux? </TITLE>
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<!--endcut ========================================================= -->
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<H4>"Linux Gazette...<I>making Linux just a little more fun!</I>"
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</H4>
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<P> <hr> <P>
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<!-- =============================================================== -->
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<H1 align="center"><A NAME="answer">
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<img src="../gx/dennis/qbubble.gif" alt="" border="0" align="middle">
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<a href="./index.html">The Answer Guy</a>
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<img src="../gx/dennis/bbubble.gif" alt="" border="0" align="middle">
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</A></H1> <BR>
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<H4 align="center">By James T. Dennis,
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<a href="mailto:linux-questions-only@ssc.com">linux-questions-only@ssc.com</a><BR>
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Starshine Technical Services,
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<A HREF="http://www.starshine.org/">http://www.starshine.org/</A> </H4>
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<p><hr></p>
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<p>The beginning of this thread was published in Issue 30,
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<a href="http://www.linuxgazette.com/issue30/tag_cdr.html">DAO
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(Disk At Once) CDR? Stump Me!</a></p>
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<p><hr width="40%"></p>
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<H3><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">DAO software for linux? </H3>
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<p><strong>From Mark Heath on Sat, 27 Jun 1998
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<br><br>
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On Thu, 25 Jun 1998, Jim Dennis wrote:
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<br><br>
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<font color="navy"><em>
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Well, you have me stumped.
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<br><br>
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I don't know anything about the difference between DAO and
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other forms of CDR recording. Normally, I'd spend an</em></font>
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<br><br>
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There are 3 different types of cd recording:
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Track at once, Disk at once and session at once.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I figured it was probably something like that.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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cdrecord, cdwrite and many others do Track at once.
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<br><br>
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Its where the software writes a track turns off the laser, turns it
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back on then writes the next track, after all the tracks are done it
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writes the leadin and lead out tracks.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I've always been curious about multi-session CD's and
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how they maintain the directory/indices on them. But never
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curious enough to look for the rainbow of books that define
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the spec. --- more of a "layperson's armchair" curiousity
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that would be satisfied with a five minute description and
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a couple of diagrams.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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With disk at once, the laser is turned on, the leadin is written,
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then the first track, second track etc, then te lead out and then
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the laser is turned off.
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<br><br>
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The has the advantage of being able to master music disks which have
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no pauses in between the tracks, which is manditory for TAO.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I think you mean "which is an avoidable result when using
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TAO." It's just a semantic nitpick --- but I had to read
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this statement several times to guess what you (probably)
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meant.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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Session at once is basically multi session DAO.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Huh? I am also a bit foggy on multi-session CD's ---
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but I'd thought that the sessions on multi-session CD's
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were supposed to be on track boundaries. Are you saying
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there's a multi-session per track option?
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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<font color="navy"><em>
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hour or two hunting around on Alta Vista, Yahoo!, Savvy
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Search, DejaNews, etc and pulling out more of my hair to
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find out. However, I have a book to write and a wife to
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feed, and it is just too close to my deadline for me to
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wait until tomorrow.
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<br><br>
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So, what is DAO and why would you need it? What is the
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difference between cdrecord and cdwrite (the one I use
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with my Ricoh CDR)? Have you tried them both? What is
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MMC? Who is Jeff Arnold? Who are HyCD and should we
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</em></font>
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<br><br>
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cdrecord is the replacement for cdwrite, Jorg Schilly supports every
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unix platform that can have a cdr plugged into.
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<br><br>
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MMC is the latest multi media specification for CDRs so that all
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drives have the same command set for recording.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I did guess that MMC stood for "multi-media CD" or
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"multi-media CDR." I take it that MMC doesn't define
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a standard for DAO mode recording? (Or were you simply
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saying that your HP SureStore CDR doesn't support the
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MMC CDR spec?).
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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Jeff Arnold is synonimous (sp?) with DAO software he wrote the First
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and most widely used DAO software for DOS. Its a pity that he won't
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support Unix because his tools are very unix like.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Maybe he could be bribed. Does he distribute his package
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as shareware? Would he be willing to license the code
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and let someone else do the port?
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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HyCD are who alta vista turned up when I did A search for +unix +cdr
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+software. They support mixed mode disk duplication, which why I
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thought it did DAO. Unfortunately it does not.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I'm afraid to ask.... what is the difference between
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"mixed mode" and DAO? Is it that HyCD can duplicate CD's
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that have mixed data and audio (etc?), and/or that it can
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read tracks that were laid down in TAO and DAO (and other?)
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modes but it must write them in TAO?
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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I was trying to eliminate a need for my Windows box but things keep
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popping onto it.
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<br><br>
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I use it for 3 things:
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<ol>
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<li>Audio manipulation. I'm waiting for a good tool (Atech is being
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developed) to do this under Linux ala Cooledit (not to be confused
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with the Linux text editor)
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<li>DAO writing.
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<li>Epson Stylus colour printing. Ghostscript just doesn't match the
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quality.
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</ol>
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Well, hopefully this will inspire someone out there to
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"raise the bar" and help you purge Windows from your system
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at long last.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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I did use it for Playstation development but now I have the tools for Linux.
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<br><br>
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Thank you very much for your help.
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<br>Mark.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Well, I obviously wasn't much help --- but we'll see if
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our readership will give us a scoop...
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</blockquote>
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<p><hr width="40%"></p>
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<H3><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">Mark Heath fills us in...</H3>
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<p><strong>From <em>The Answer Guy</em> on Mon, 29 Jun 1998
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<br><br>
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On Sat, 27 Jun 1998, Jim Dennis wrote:
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<br><br>
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<font color="navy"><em>
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Its where the software writes a track turns off the laser, turns it
|
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back on then writes the next track, after all the tracks are done it
|
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writes the leadin and lead out tracks.</em></font>
|
|
<br><br>
|
|
I've always been curious about multi-session CD's and
|
|
how they maintain the directory/indices on them. But never
|
|
curious enough to look for the rainbow of books that define
|
|
the spec. --- more of a "layperson's armchair" curiousity
|
|
that would be satisfied with a five minute description and
|
|
a couple of diagrams.
|
|
</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I've never successfully written a multisession CD either. I've made a
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few open disks but never managed to import the previous session properly
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so I didn't bother trying to continue writing to them. Just in case I
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lost the first session.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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<font color="navy"><em>Session at once is basically multi session DAO.</em></font>
|
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<br><br>
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Huh? I am also a bit foggy on multi-session CD's ---
|
|
but I'd thought that the sessions on multi-session CD's
|
|
were supposed to be on track boundaries. Are you saying
|
|
there's a multi-session per track option?
|
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</strong></p>
|
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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This is correct. For example you can write 3 tracks multisession using
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DAO. Then come back later and write a few more tracks using DAO.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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|
<font color="navy"><em>
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|
MMC is the latest multi media specification for CDRs so that all
|
|
drives have the same command set for recording.</em></font>
|
|
<br><br>
|
|
I did guess that MMC stood for "multi-media CD" or
|
|
"multi-media CDR." I take it that MMC doesn't define
|
|
a standard for DAO mode recording? (Or were you simply
|
|
saying that your HP SureStore CDR doesn't support the
|
|
MMC CDR spec?).
|
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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The 4020i doesn't support MMC. Only new drives do (most of the IDE
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CD-Rs do, and the CD-RW do)
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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<font color="navy"><em>
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Jeff Arnold is synonimous (sp?) with DAO software he wrote the First
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and most widely used DAO software for DOS. Its a pitty that he wont
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support Unix because his tools are very unix like.</em></font>
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<br><br>
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Maybe he could be bribed. Does he distribute his package
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as shareware? Would he be willing to license the code
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</strong></p>
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<dl><dt><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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He does. The downloadable version is available at:
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<dd><code><A HREF="http://www.goldenhawk.com/"
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>http://www.goldenhawk.com/</A></code>
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</dl>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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and let someone else do the port?
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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I'd really like that but I dont know how Jeff feels about Linux.
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<br><br>
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He seemed rather hostile when I asked about doing a linux port.
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All his reply was: no.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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<font color="navy"><em>
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HyCD are who alta vista turned up when I did A search for
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<tt>+unix +cdr +software</tt>. They support mixed mode disk
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duplication, which why I thought it did DAO. Unfortunately it
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does not.</em></font>
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<br><br>
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I'm afraid to ask.... what is the difference between
|
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"mixed mode" and DAO? Is it that HyCD can duplicate CD's
|
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that have mixed data and audio (etc?), and/or that it can
|
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read tracks that were laid down in TAO and DAO (and other?)
|
|
modes but it must write them in TAO?
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Mixed mode is simply multiple tracks with different data formats.
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The most common is Computer games with 1 data track followed by several
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Audio tracks, these can be written with TAO.
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<br><br>
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The main difference between DAO and TAO is that for DAO the laser is
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never turned off during the recording. You can even do a single track in
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DAO mode. The difference here is that DAO disks can be taken to CD
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publishing company while TAO disks can not (due to gaps in the track
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data, where the laser has been turned off)
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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Well, hopefully this will inspire someone out there to
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"raise the bar" and help you purge Windows from your system
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at long last.
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Well I did this some time ago, purge windows. Then a piece of hardware
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came out which was built into the motherboard so I built a new machine and
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put both Linux and 95 on it.
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<br><br>
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My primary box is Linux only.
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</blockquote>
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<p><strong><img src="../gx/dennis/qbub.gif" alt="(?)" width="50" height="28"
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align="left" border="0">
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Well, I obviously wasn't much help --- but we'll see if
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our readership will give us a scoop...
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</strong></p>
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<blockquote><img src="../gx/dennis/bbub.gif" alt="(!)" width="50" height="28"
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align="left" border="0">
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Well Its always good to hear that someone understands and says Lets see
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what we can do.
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</blockquote>
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<!--================================================================-->
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<P> <hr> <P>
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<H5 align="center"><a href="http://www.linuxgazette.com/copying.html"
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>Copyright ©</a> 1998, James T. Dennis <BR>
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Published in <I>Linux Gazette</I> Issue 31 August 1998</H5>
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<P> <hr> <P>
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<td><A HREF="tag_multihead.html">multihead</A></td>
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<td><A HREF="tag_cdr.html">cdr</A></td>
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