Red Hat Bugzilla – Bug 233745
cdrecord falls back to cd driver when burning a dvd
Last modified: 2008-05-06 15:24:32 EDT
Description of problem:
When I try to burn a DVD+R on my laptop, cdrecord correctly identifies the
medium as DVD+R. However, it then complains that it can't find cdrecord-ProDVD
in the path and that I need a license. It proceeds to use the CD driver
instead(!) and although it complains that the .iso is too large, continues
anyway, producing a useless DVD.
cdrecord-ProDVD hasn't existed for some time now, as the DVD burning capability
ahs been folded into the OSS version of cdrecord.
I downloaded the latest version of cdrecord from the site, compiled, installed,
and it burns just fine.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Insert blank DVD+R
2. cdrecord -v -dao filename.iso
* Looks and fails to find cdrecord-ProDVD
* Falls back to cd driver
* Detects size mismatch but doesn't stop
* Resulting in a trashed DVD+R
It should do one of the following:
1) Correctly burn the DVD (using latest changes from OSS cdrecord)
2) Fail rather than falling back to the CD driver
or at very least
3) Fail when it detects the size mismatch.
The man page must be way out of sync. It mentions the mmc_dvdplus driver (along
with a host of other ones), but when you try to specify that driver, cdrecord
says it doesn't exist.
Created attachment 150827 [details]
script capture of cdrecord interaction
I have successfully used a Sony DW-G120A drive to write to both a Phillips
DVD+RW and a Maxell DVD+R, even though ugly-looking error messages appear during
burning. In fact, growisofs is incapable of providing the padding necessary to
avoid the kernel read-ahead bug, so using cdrecord is the only way to do it.
Created attachment 150836 [details]
cdrecord output burning FC6 DVD
I'm seeing this exact problem except that I don't end up with a coaster. I get
the error about ProDVD and falling back to CDs and then the program aborts. I
have a Philips DVD+/-RW DVD8801. Other tools like growisofs work just fine.
I successfully made a DVD backup on 3/29, but upon trying it on 4/27, cdrecord
aborted. I thought it was the new 2944 kernel, but after booting into the same
2933 kernel I was using on 3/29, it still aborted. So some other update within
the past month must be responsible.
Created attachment 154288 [details]
output of cdrecord failing to burn ISO file to DVD+RW disc
I'm concerned about this bug because in order to avoid the readahead bug when
burning a Fedora DVD (and hence avoid the mediacheck failure) it's necessary to
have padding on the disc after the ISO itself. Cdrecord but not growisofs is
capable of this. Are there any other burning tools that can do the same? I
once tried using dd to manually add zero padding after the ISO. The resulting
disc passed mediacheck but for some reason couldn't be booted properly. So I
prefer not to go that route.
The F7 fork of cdrecord (wodim) burns DVDs for me without any errors at all.
Fedora apologizes that these issues have not been resolved yet. We're
sorry it's taken so long for your bug to be properly triaged and acted
on. We appreciate the time you took to report this issue and want to
make sure no important bugs slip through the cracks.
If you're currently running a version of Fedora Core between 1 and 6,
please note that Fedora no longer maintains these releases. We strongly
encourage you to upgrade to a current Fedora release. In order to
refocus our efforts as a project we are flagging all of the open bugs
for releases which are no longer maintained and closing them.
If this bug is still open against Fedora Core 1 through 6, thirty days
from now, it will be closed 'WONTFIX'. If you can reporduce this bug in
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these issues to this point.
The process we are following is outlined here:
We will be following the process here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this
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This bug is open for a Fedora version that is no longer maintained and
will not be fixed by Fedora. Therefore we are closing this bug.
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Thank you for reporting this bug and we are sorry it could not be fixed.