I have:

Lite-On DVDRW SOHW-1633S
Mandrake 10.0 Official
K3b 0.11.6cvs

I am trying to burn a DVD ISO image (it's Debian sarge).
Every time I've tried it I get this error message: "Failed to change write speed: 4432 -> 11080" "Fatal error at startup: Invalid argument."

The following is the "debugging output" from K3b:

growisofs
-----------------------
Executing 'builtin_dd if=/home/eric/jigdo-bin-0.7.1/sarge-i386-1.iso of=/dev/ide/host0/bus0/target0/lun0/cd obs=32k seek=0'
:-( Failed to change write speed: 4432->11080

growisofs comand:
-----------------------
/usr/bin/growisofs -Z /dev/ide/host0/bus0/target0/lun0/cd=/home/eric/jigdo-bin-0.7.1/sarge-i386-1.iso -use-the-force-luke=notray -use-the-force-luke=tty -speed=8


I have tried:

different media (both + and -)
different combinations of settings on K3b
downloaded and installed k3b-dvd-0.11.1-15mdk
ran in both kde and gnome
tried running the "growisofs" command from a terminal
tried to find a command-line procedure to do this

And so far, I have had no success.

Any ideas?

did you try running k3b as root?

What is your kernel version? Code for burning CDs/DVDs has been changing quite a bit since 2.6.8. Do you have trouble with:

1. Other DVD isos?
2. Data DVDs?
3. CD isos?
4. Data CDs?

That's a good idea, and I tried it, but it didn't help. Thanks anyway.

Good questions, you've helped me eliminate some possibilites:

Kernel version 2.6.3-7mdk

1. I don't have any other isos to try, but...
2. I tried to burn a data collection onto a DVD and it failed with the same error
3. see no. 1 above
4. data CDs work fine.

I'm sneaking up on the idea that this combination of K3b and my burner don't like the idea of burning DVDs. I may try getting some other software, or looking for a newer version of K3b and/or the k3b-dvd thing. I guess I'd better get urpmi running on this box... sigh...

Thanks to you both.

try a newer kernel version

I agree, looks like a DVD only issue.

I have a different Lite-ON drive, but it works without a problem (LITE-ON DVDRW SOHW-812S).

I see that your burner is dual-layer (*yum*). Are you attempting to burn dual-layer or single-layer media?

Thanks. That may help. But I must admit every attempt I've ever made to compile a kernel has been a disaster. Yes, I'm incompetent. Sigh. Actually I discovered a way to fix the problem, at least for the purpose of this particular job. See below.

Again, thank you, Matir.

I have had good luck with Lite-On, and that's why I purchased this one. I got it at tigerdirect.com for $66; couldn't pass it up.

This job was burned to single layer. I got exactly 2 sample DVD-Rs with the drive, one +R and one -R. I haven't got any more blank discs now! So I guess I'll have to buy some. I will give dual-layer a try eventually, but I imagine the single layer discs are less $ and that's probably what I'll use for now.

For your curiosity and to help others, here's what I did:

I went to the K3b website http://www.k3b.org/ and discovered this: " * The DVD+RW-Tools are used to burn and format DVD+R(W) and DVD-R(W) media. For DVD+R Double Layer burning version >= 5.20.4.10.8 is required." The version installed in my Mandrake 10.0 Official was older, something like 5.17.etc. I removed it with rpmdrake, and journeyed to http://fy.chalmers.se/~appro/linux/DVD+RW/, thence to http://fy.chalmers.se/~appro/linux/DVD+RW/tools/?M=D, and downloaded dvd+rw-tools-5.21.4.10.8.tar.gz. I put it in /usr/local/bin and unzipped it (tar -xvzf dvd+rw-tools-etc). Very easy to compile, with only "make" then "make install." ( One of the few times that I've compiled something without spending all night on it and finally giving up.)

With the new version of dvd+rw-tools installed, I opened K3b and got an error message to the effect that K3b can't find the dvd+rw-tools format RW application. I don't care about this as I'm not using RW media so I ignored it. I followed the normal procedure (can't remember where I originally read this) which is to click on Tools and DVD and select Burn DVD ISO image. I burned both isos to the 2 sample discs I have, and all seemed to work fine. Of course I haven't tried to do an install from them yet. I'll update this thread accordingly when I do. I wonder what the effect of having one iso on + and one on - will be, if any? If this sounds like I haven't a clue, that's an accurate observation.

Bottom line: I'm happy for now. And after all, happiness is always temporary.

Best regards and gratitude,

Eric Lester

The differences between +/- are not readily apparent on data DVDs. Generally, they just have to do with readability on standard DVD (video) players.