Gentoo Archives: gentoo-user

From: "José Romildo Malaquias" <j.romildo@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] cdrecord fails to burn dvd
Date: Mon, 30 Nov 2009 10:34:36
Message-Id: 20091130103508.GA12199@malaquias.DHCP-GERAL
In Reply to: Re: [gentoo-user] cdrecord fails to burn dvd by Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling)
1 On Sun, Nov 29, 2009 at 06:58:40PM +0100, Joerg Schilling wrote:
2 > José Romildo Malaquias <j.romildo@×××××.com> wrote:
3 >
4 > > On Fri, Nov 20, 2009 at 04:48:25PM +0100, Joerg Schilling wrote:
5 > > > José Romildo Malaquias <j.romildo@×××××.com> wrote:
6 > > >
7 > > > > > There was a report for broken Pioneer formware that hits in -v mode and
8 > > > > > causes the firmware from the drive to through away the data before writing
9 > > > > > it to the medium.
10 > > > >
11 > > > > Do you mean a test without -V or -v ?
12 > > >
13 > > > Without -v, as in this case cdrecord does not read the drives buffer fill ratio.
14 > > > It seems that there is a bug in Pioneer firmware that is triggered by calling
15 > > > SCSI get buffer cap (0x5C)and that results in throwing away the DMA data.
16 > >
17 > > Good news!
18 > >
19 > > With the command (without using the -v option)
20 > >
21 > > $ script -f -c "cdrecord -V debug=2 -sao -eject speed=8 fs=256m driveropts=burnfree /var/tmp/image.iso" cdrecord.log
22 > >
23 > > cdrecord completed successfully. The sha1 sums (calculated in a
24 > > different computer) for both the image and the recorded media are
25 > > identical!
26 >
27 > OK, could you please use an original cdrecord without your recent self made
28 > patch and then apply this patch:
29 [...]
30 > This should avoid some calls to the buffer cap function before the drive's
31 > internal buffer was filled the first time.
32 >
33 > Then please test again with -v
34
35 It works. See attached the output of the command:
36
37 # script -f -c "/var/tmp/CDRTOOLS/opt/schily/bin/cdrecord -v -sao -eject speed=8 fs=256m driveropts=burnfree /var/tmp/image.iso" /var/tmp/cdrecord.log
38
39 Romildo

Attachments

File name MIME type
cdrecord.log text/plain

Replies

Subject Author
Re: [gentoo-user] cdrecord fails to burn dvd Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling)