cdrom and cdrw

Kerry Hoath kerry at gotss.net
Tue Mar 26 12:40:13 EST 2002


Wrong again greg,
failing to set the cdrom up as ide-scsi
will prevent utilities from using the read raw p-w subchannel command.
This foils index detection and can prevent some drives from reading cd-text 
informantion and isrc information.
Some drives do not support the read-raw p-w subchannel command and will only read
the pq subchannel but why take the risk?
Also, cdparanoia will work with some drives in ide-scsi emulation that will fail when
controlled by the ide/atapi driver.
Your milage may vary but I have found that the ide-scsi layer is more
affective at digital audio extraction than the ide/atapi driver.

Regards, Kerry.
On Tue, Mar 26, 2002 at 11:29:44AM -0600, Gregory Nowak wrote:
> You don't need to set up the cdrom as a ide-scsi device. This is only required for the cdrw.
> Greg
> 
> 
> On Tue, Mar 26, 2002 at 10:52:16AM -0600, Cheryl Homiak wrote:
> > I'm a little confused even after reading all the docs so I could use some help
> > here.
> > I have an ide/atapi cdrom, which I have loaded as scsi because i'm getting ready
> > to get a cdrw in addition to the cdrom. Here are my questions:
> > 1. Does placement of the cdrw and cdrom matter. The person installing wants to
> > put them on separate ides as he says this can make the cdrw slightly faster.
> > this means that one of them has to be hdb and the other has to be hdc or hdd (I
> > would think hdc). Is it better to put the cdrw as single or primary and let the
> > cdrom be the slave on my first ide?
> > 2. Does this mean that i set up both the cdrom and the cdrw as scsi? I think I
> > read that if you compile both scsi and atap/ide into the kernel the atapi/ide
> > will take over which I don't want for the cdrw for sure.
> > 3. If both are to be scsi, should my cdrw be scd0 and my cdrom scd1 or does this
> > matter?
> > 4. What symlinks do I do? Right now I have /dev/cdrom linked to scd0, but is
> > this where the cdrw should be linked? Do I make an additional directory and
> > mount point so that both can be mounte?
> > Thanks.
> > 
> > 
> > _______________________________________________
> > Speakup mailing list
> > Speakup at braille.uwo.ca
> > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 
> _______________________________________________
> Speakup mailing list
> Speakup at braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 

-- 
Kerry Hoath:  kerry at gotss.net kerry at gotss.eu.org or  kerry at gotss.spice.net.au
ICQ: 8226547 msn: kerry at gotss.net Yahoo: kerryhoath at yahoo.com.au




More information about the Speakup mailing list