Re: Can't burn CDs at a reasonable speed (cdrecord, 2.6.11 kernel).

[Tony Rowe <ay986@chebucto.ns.ca>]

Hi Adam and Roberto,

On 2005-06-02, Adam Funk wrote:
>
> $ mkisofs -r -J -o foo.iso foodir
> $ cdrecord -v speed=16 dev=ATA:0,0,0 foo.iso
>
> If I specify a higher speed, cdrecord fails and I get a coaster.  I would
> appreciate any suggestions for improving this.

I was just reading an lkml thread (flame fest) on this topic.[0] I have
little experience with cdrecord on 2.6.* myself but have either of you
tried burning a cd using cdrecord with speed=[greater than] 16 as root?

regards,
Tony

[0] http://www.ussg.iu.edu/hypermail/linux/kernel/0505.3/0539.html

               Re: OT] Joerg Schilling flames Linux on his Blog

   From: Joerg Schilling
   Date: Wed May 25 2005 - 17:49:28 EST

[...]

If you don't call cdrecord as root, you will not be able to lock in
memory and to raise priority in order to prevent buffer underuns. In
addition (with Linux-2.6.8.1 or newer) you will not be able to send some
of the important SCSI commands mainly related to newer CD or DVD drives.
As a result, cdrecord cannot write DVDs or ultra speed CD-RWs or cannot
do other things....

> Thanks,
> Adam
>