Re: K3b and OpenSuse 10.3

On Tue, 30 Oct 2007, Joerg Schilling wrote:-

If you only tro to do one of the few supported things from wodim it may
work,

Does work. It's not yet failed with me and my systems. That doesn't mean
that it'll work on other peoples systems, but it does work for me.

but note that the fact that wodim does not support the -atip option
with DVDs

As posted in another reply:

davjam@lion:~> cdrecord -atip
Device was not specified. Trying to find an appropriate drive...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : 'MATSHITA'
Identification : 'UJ-840D '
Revision : '1.02'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags : SWABAUDIO BURNFREE
Supported modes: PACKET SAO
HINT: use dvd+rw-mediainfo from dvd+rw-tools for information extraction.

As to whether this is useful or not, so far wodim hasn't had a problem
writing to DVDs on my systems.

verifies that wodim uses guessed parameters instead of parameters
retrieved from your medium. Cdrecord correctly parameterises the values
since March 1998. Wodim ripped off working DVD support and replaced it by
simple and half baken code.

For half-baked code, it sure seems to do the job. And even if it didn't,
I don't need to use either wodim or cdrecord as growisofs is quite
capable of writing DVDs.

[0] apart from the fact that the system is too slow to write at anything
faster that 4x without suffering from many buffer underruns.

As you do not give any information on your problem, nobody can help you
with this problem.

I stated that the system I used is too slow to use at anything higher
than a 4x write speed, and if there is a problem it is purely down to
that. I didn't say that I had a problem with this, as I don't. However,
to fill you in on why the system is too slow to handle more that a 4x
write speed, here's the hardware details:

The system in question is a 1998 G3 iMac running at a whopping 333Mz.
The CD ROM drive has been replaced with a DVD writer and the original
6GB hard drive has been replaced by a 160GB drive.

With this system, the limiting factor is the IDE bus which tops out at
around 6.7MB/s. Since there is no possibility of speeding it up, there
is no solution to this other than to limit the write speed.

Using growisofs, since it's kind enough to be quite verbose while
writing to disc, here's the output writing the 10.3-PPC-DVD.iso to an 8x
capable blank disc:

davjam@lion:~> growisofs -dvd-compat -Z /dev/dvdrw=/mnt/hda13/openSUSE-10.3-GM-DVD-i386.iso
Executing 'builtin_dd if=/mnt/hda13/openSUSE-10.3-GM-DVD-i386.iso of=/dev/dvdrw obs=32k seek=0'
/dev/dvdrw: "Current Write Speed" is 8.2x1352KBps.
1572864/4405843968 ( 0.0%) @0.0x, remaining 280:00 RBU 100.0% UBU 2.1%
1572864/4405843968 ( 0.0%) @0.0x, remaining 420:01 RBU 100.0% UBU 100.0%
1572864/4405843968 ( 0.0%) @0.0x, remaining 606:42 RBU 100.0% UBU 100.0%
1572864/4405843968 ( 0.0%) @0.0x, remaining 746:42 RBU 100.0% UBU 100.0%
1572864/4405843968 ( 0.0%) @0.0x, remaining 886:43 RBU 100.0% UBU 100.0%
1572864/4405843968 ( 0.0%) @0.0x, remaining 1073:23 RBU 100.0% UBU 100.0%
1572864/4405843968 ( 0.0%) @0.0x, remaining 1213:24 RBU 100.0% UBU 100.0%
3702784/4405843968 ( 0.1%) @0.5x, remaining 574:37 RBU 100.0% UBU 100.0%
14811136/4405843968 ( 0.3%) @2.4x, remaining 163:03 RBU 100.0% UBU 100.0%
25919488/4405843968 ( 0.6%) @2.4x, remaining 101:23 RBU 100.0% UBU 100.0%
37060608/4405843968 ( 0.8%) @2.4x, remaining 76:37 RBU 100.0% UBU 100.0%
48168960/4405843968 ( 1.1%) @2.4x, remaining 64:50 RBU 100.0% UBU 100.0%
59310080/4405843968 ( 1.3%) @2.4x, remaining 56:11 RBU 98.4% UBU 100.0%
70418432/4405843968 ( 1.6%) @2.4x, remaining 50:16 RBU 100.0% UBU 100.0%
81526784/4405843968 ( 1.9%) @2.4x, remaining 46:51 RBU 100.0% UBU 100.0%
92667904/4405843968 ( 2.1%) @2.4x, remaining 43:26 RBU 100.0% UBU 100.0%
103776256/4405843968 ( 2.4%) @2.4x, remaining 40:45 RBU 100.0% UBU 100.0%
114917376/4405843968 ( 2.6%) @2.4x, remaining 39:12 RBU 100.0% UBU 100.0%
126025728/4405843968 ( 2.9%) @2.4x, remaining 37:21 RBU 100.0% UBU 100.0%
137166848/4405843968 ( 3.1%) @2.4x, remaining 35:47 RBU 100.0% UBU 100.0%
148275200/4405843968 ( 3.4%) @2.4x, remaining 34:56 RBU 100.0% UBU 100.0%
159383552/4405843968 ( 3.6%) @2.4x, remaining 33:44 RBU 100.0% UBU 100.0%
170524672/4405843968 ( 3.9%) @2.4x, remaining 32:42 RBU 100.0% UBU 100.0%
181665792/4405843968 ( 4.1%) @2.4x, remaining 32:09 RBU 100.0% UBU 100.0%
192774144/4405843968 ( 4.4%) @2.4x, remaining 31:19 RBU 100.0% UBU 100.0%
203882496/4405843968 ( 4.6%) @2.4x, remaining 30:34 RBU 100.0% UBU 100.0%
215023616/4405843968 ( 4.9%) @2.4x, remaining 30:12 RBU 100.0% UBU 100.0%
226131968/4405843968 ( 5.1%) @2.4x, remaining 29:34 RBU 100.0% UBU 100.0%
237273088/4405843968 ( 5.4%) @2.4x, remaining 28:59 RBU 100.0% UBU 100.0%
248381440/4405843968 ( 5.6%) @2.4x, remaining 28:44 RBU 100.0% UBU 100.0%
259522560/4405843968 ( 5.9%) @2.4x, remaining 28:13 RBU 100.0% UBU 100.0%
270008320/4405843968 ( 6.1%) @2.3x, remaining 28:04 RBU 100.0% UBU 100.0%
271056896/4405843968 ( 6.2%) @0.2x, remaining 28:43 RBU 98.4% UBU 100.0%
279347200/4405843968 ( 6.3%) @1.8x, remaining 28:33 RBU 100.0% UBU 100.0%
297861120/4405843968 ( 6.8%) @4.0x, remaining 27:34 RBU 100.0% UBU 100.0%
316407808/4405843968 ( 7.2%) @4.0x, remaining 26:29 RBU 100.0% UBU 100.0%
334921728/4405843968 ( 7.6%) @4.0x, remaining 25:31 RBU 100.0% UBU 100.0%
353435648/4405843968 ( 8.0%) @4.0x, remaining 24:50 RBU 98.4% UBU 97.9%
371949568/4405843968 ( 8.4%) @4.0x, remaining 24:02 RBU 100.0% UBU 100.0%
......
1705967616/4405843968 (38.7%) @4.0x, remaining 9:50 RBU 98.4% UBU 97.9%
1724481536/4405843968 (39.1%) @4.0x, remaining 9:44 RBU 100.0% UBU 100.0%
1743028224/4405843968 (39.6%) @4.0x, remaining 9:40 RBU 100.0% UBU 100.0%
1746403328/4405843968 (39.6%) @0.7x, remaining 9:43 RBU 100.0% UBU 100.0%
1755152384/4405843968 (39.8%) @1.9x, remaining 9:42 RBU 100.0% UBU 33.3%
1775468544/4405843968 (40.3%) @4.4x, remaining 9:37 RBU 100.0% UBU 6.2%
1797586944/4405843968 (40.8%) @4.8x, remaining 9:30 RBU 100.0% UBU 14.6%
1817640960/4405843968 (41.3%) @4.3x, remaining 9:23 RBU 100.0% UBU 25.0%
1839759360/4405843968 (41.8%) @4.8x, remaining 9:17 RBU 100.0% UBU 22.9%
1859354624/4405843968 (42.2%) @4.2x, remaining 9:11 RBU 100.0% UBU 20.8%
1879638016/4405843968 (42.7%) @4.4x, remaining 9:05 RBU 98.4% UBU 20.8%
1901461504/4405843968 (43.2%) @4.7x, remaining 9:00 RBU 100.0% UBU 12.5%
1921974272/4405843968 (43.6%) @4.4x, remaining 8:53 RBU 100.0% UBU 4.2%
1943470080/4405843968 (44.1%) @4.7x, remaining 8:47 RBU 100.0% UBU 6.2%
1964277760/4405843968 (44.6%) @4.5x, remaining 8:42 RBU 100.0% UBU 8.3%
1984757760/4405843968 (45.0%) @4.4x, remaining 8:35 RBU 100.0% UBU 6.2%
2006745088/4405843968 (45.5%) @4.8x, remaining 8:29 RBU 100.0% UBU 8.3%
2022932480/4405843968 (45.9%) @3.5x, remaining 8:26 RBU 100.0% UBU 25.0%
2044067840/4405843968 (46.4%) @4.6x, remaining 8:20 RBU 100.0% UBU 10.4%
2065235968/4405843968 (46.9%) @4.6x, remaining 8:14 RBU 100.0% UBU 14.6%
2085683200/4405843968 (47.3%) @4.4x, remaining 8:09 RBU 100.0% UBU 12.5%
2107506688/4405843968 (47.8%) @4.7x, remaining 8:03 RBU 100.0% UBU 6.2%
2128019456/4405843968 (48.3%) @4.4x, remaining 7:57 RBU 100.0% UBU 6.2%
2148073472/4405843968 (48.8%) @4.3x, remaining 7:52 RBU 100.0% UBU 6.2%
......
4230807552/4405843968 (96.0%) @4.5x, remaining 0:33 RBU 98.4% UBU 14.6%
4250107904/4405843968 (96.5%) @4.2x, remaining 0:29 RBU 100.0% UBU 14.6%
4271144960/4405843968 (96.9%) @4.6x, remaining 0:25 RBU 100.0% UBU 8.3%
4290478080/4405843968 (97.4%) @4.2x, remaining 0:21 RBU 100.0% UBU 14.6%
4311449600/4405843968 (97.9%) @4.5x, remaining 0:17 RBU 100.0% UBU 8.3%
4330749952/4405843968 (98.3%) @4.2x, remaining 0:14 RBU 98.4% UBU 8.3%
4350836736/4405843968 (98.8%) @4.4x, remaining 0:10 RBU 0.0% UBU 20.8%
4368171008/4405843968 (99.1%) @3.8x, remaining 0:07 RBU 100.0% UBU 6.2%
4388913152/4405843968 (99.6%) @4.5x, remaining 0:03 RBU 100.0% UBU 4.2%
builtin_dd: 2151296*2KB out @ average 3.8x1352KBps
/dev/dvdrw: flushing cache
/dev/dvdrw: closing track
/dev/dvdrw: closing disc

As you can see, the IDE bus can't keep up with the drive write speed and
so, without scrapping that system, limiting the write speed is the only
workable option. And all that means is that I have to wait another 7 or
8 minutes for the disc to complete writing. Not exactly a long time, and
I can always find something to do during that time.


Regards,
David Bolt

--
www.davjam.org/lifetype/ www.distributed.net: OGR@100Mnodes, RC5-72@15Mkeys
| SUSE 10.1 32bit | openSUSE 10.2 32bit | openSUSE 10.3 32bit
SUSE 10.0 64bit | SUSE 10.1 64bit | openSUSE 10.2 64bit |
RISC OS 3.11 | RISC OS 3.6 | TOS 4.02 | openSUSE 10.3 PPC
.

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