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growisofs + DVD+R + Plextor708A


I've been using growisofs for some time, but the last couple of spindles
I have had seem to be 8 speed media. I am experiencing slow burning with
this media, as the Plextor708A I have tries to write at 6x, which does
not seem to work that well. It starts off slowish (~3.0x), but does not 
take up speed at all. At some point, progression dies off and the drive
stops burning, hanging growisofs (unkillable, probably in some systemcall).

I read that 5.17 has -speed support for +R media, so I compiled this
(FreeBSD 5.1) but setting speed fails. I've googled a bit, and other
people seem to be experiencing it also.

The firmware of the drive was 1.02, so I just upgraded it to 1.06
(latest from the Plextor website), but to no avail. 

Here's what happens:

$ growisofs -speed=4 -Z/dev/cd0=image
Executing 'builtin_dd if=image of=/dev/pass1 obs=32k seek=0'
:-( Failed to change write speed: 8310->5540

$ sudo dvd+rw-mediainfo /dev/cd0
INQUIRY:                [PLEXTOR ][DVDR   PX-708A  ][1.06]
 Mounted Media:         1Bh, DVD+R
 Media ID:              RICOHJPN/R01
 Current Write Speed:   4.0x1385=5540KB/s
 Write Speed #0:        8.0x1385=11080KB/s
 Write Speed #1:        4.0x1385=5540KB/s
 Write Speed #2:        2.4x1385=3324KB/s
 Write Performance:     6.0x1385=8310KB/s@[0 -> 385023]
                        8.0x1385=11080KB/s@[385024 -> 2295103]
 Speed Descriptor#0:    02/2295104 R@8.0x1385=11080KB/s W@8.0x1385=11080KB/s
 Speed Descriptor#1:    02/2295104 R@8.0x1385=11080KB/s W@4.0x1385=5540KB/s
 Speed Descriptor#2:    02/2295104 R@8.0x1385=11080KB/s W@2.4x1385=3324KB/s
:-[ READ DVD STRUCTURE#0 failed with SK=5h/ASC=24h/ACQ=00h]: Input/output error
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 Number of Tracks:      1
 Track State:           blank
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           2295104*2KB
 Track Size:            2295104*2KB

$ sudo growisofs -speed=1 -Z/dev/cd0=image
Executing 'builtin_dd if=image of=/dev/pass1 obs=32k seek=0'
:-( Failed to change write speed: 8310->3324

Here's some versions:

$ uname -a
FreeBSD kahlua.dappekepatches.net 5.1-RELEASE-p13 FreeBSD 5.1-RELEASE-p13 #1: Tue Feb 24 22:30:38 CET 2004     pim@kahlua.dappekepatches.net:/usr/src/sys/i386/compile/KAHLUA  i386

$ growisofs --version
* growisofs by <appro@fy.chalmers.se>, version 5.17,
  front-ending to mkisofs: mkisofs 2.0 (i386-unknown-freebsd5.1)

---------- - -    - - -+- - -    - - ----------
Pim van Pelt                 Email: pim@ipng.nl
http://www.ipng.nl/             IPv6 Deployment

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