Eduard,

On Sun, Jan 28, 2007 at 08:29:41PM +0100, Eduard Bloch wrote:
> #include <hallo.h>
> * Jeremiah Mahler [Sat, Jan 27 2007, 06:03:47PM]:
> > 
> > Went looking through the source of wodim and it seems that the variable
> > dp->cdr_dstat->ds_wspeed in wodim.c:main() which is set by the speed=x
> > directive is not used by the driver drv_mmc.c.  drv_mmc.c uses
> > dp->cdr_dstat->ds_dr_cur_wspeed which is set in wodim.c:main() to the
> > resulting value which is wrong.
> > 
> > My notes are below:
> 
> Your notes are flawed. Because you seem only to look for direct value
> assignments (ignoring pointers) and you assume that the drive does
> everything you want with any media. However, those assumptions are a bit
> naive (sorry). The speed variable is accessed via a pointer in
> wodim.c:1013. Its value is written back in drv_mmc.c 2090, after
> communication with the drive.
> 
Yes, I was unsure about how the variables were communicated between
them.

I am assuming I can tell the drive to go at the slowest speed I want.
Are you suggesting that some drives can not write at 1x or some other
slow speed?

> And now (and I don't like repeating myself), please tell me what
> dvd+rw-mediainfo says about your media. If the drive does not like
> writting with single speed then it most likely won't write with single
> speed. Jeez, modern DVD-Rs do not even like less than 4x.
> 
Sorry to make you repeat your self.  Previously I included as attachments
the output of dvd+r-mediainfo on both a DVD+R DL and a DVD+R.
They both appear in the bug report page also:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=408488.
I will include them again inline below.

> Eduard.
> -- 

####> DVD+R DL mediainfo <######################################################
Script started on Fri 26 Jan 2007 09:56:41 AM PST
hudson:~# dvd+rw-mediainfo /dev/hda
INQUIRY:                [TSSTcorp][CD/DVDW SH-S182M][SB02]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         2Bh, DVD+R Double Layer
 Current Write Speed:   2.0x1385=2770KB/s
 Write Speed #0:        2.0x1385=2770KB/s
GET [CURRENT] PERFORMANCE:
 Write Performance:     2.0x1385=2770KB/[EMAIL PROTECTED] -> 4173824]
 Speed Descriptor#0:    00/4173823 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s
READ DVD STRUCTURE[#0h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Media ID:              RITEK/D01
 Legacy lead-out at:    2086912*2KB=4273995776
DVD+R DOUBLE LAYER BOUNDARY INFORMATION:
 L0 Data Zone Capacity: 2086912*2KB, can still be set
READ DISC INFORMATION:
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 "Next" Track:          1
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           blank
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           4173824*2KB
 Track Size:            4173824*2KB
 ROM Compatibility LBA: 265696
READ CAPACITY:          0*2048=0
hudson:~# 
Script done on Fri 26 Jan 2007 09:56:50 AM PST
################################################################################

####> DVD+R <###################################################################
Script started on Sat 27 Jan 2007 03:44:40 PM PST
hudson:~# dvd+rw-mediainfo /dev/hda
INQUIRY:                [TSSTcorp][CD/DVDW SH-S182M][SB02]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         1Bh, DVD+R
 Current Write Speed:   4.0x1385=5540KB/s
 Write Speed #0:        8.0x1385=11080KB/s
 Write Speed #1:        4.0x1385=5540KB/s
GET [CURRENT] PERFORMANCE:
 Write Performance:     4.0x1385=5540KB/[EMAIL PROTECTED] -> 2295104]
 Speed Descriptor#0:    00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s
 Speed Descriptor#1:    00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s
READ DVD STRUCTURE[#0h]:
 Media Book Type:       00h, DVD-ROM book [revision 0]
 Media ID:              PRODISC/R04
 Legacy lead-out at:    2295104*2KB=4700372992
READ DISC INFORMATION:
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 "Next" Track:          1
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           blank
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           2295104*2KB
 Track Size:            2295104*2KB
 ROM Compatibility LBA: 265696
READ CAPACITY:          0*2048=0
hudson:~# 
Script done on Sat 27 Jan 2007 03:44:57 PM PST
################################################################################

-- 
Jeremiah Mahler <[EMAIL PROTECTED]>


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