Baslinux mailing list

[sindi keesan <keesan AT sdf.lonestar.org>]

On Tue, 26 Oct 2004, Hal MacArgle wrote:

> On 10-26, sindi keesan wrote:
> > I got a blank copy and I checked and it was not upside down.
> > Hal said I needed a '-' in there somewhere but that is not in the notes he
>
>         I was wrong - misinterpreting the query.. The '-' is only
> needed when you burn an entire directory after a pipe from mkisofs..
> Not needed to copy a raw image file...
>
>
>
> > This is a CD-R not RW.  The burner is listed by linux as CD-RW but online
> > it seems to be a CD-R 2x write 24x read.  Were there 2X RW models?
>
>         AFAIK, all will burn CDR's and CDRW's, depending on the
> actual media that cdrecord will sense... The speed will vary
> depending on the burner and the media.. I've not been able to burn
> any at some of the very high speeds - backing down OK.. ?? ..

2X is not a 'very high speed' and is all we can do here.

> > Does the 'dummy' mode detect if the disk is not recordable?
> > Hal suggested switches -toc and -inq.
>
>         cdrecord -toc will list the table of contents.. If nothing
> there - it'll report nothing.. <grin> -inq is inquiry.. Forget what
> it does completely.
Table of contents on a disk that was successfully burned?
Do I just try a second CD-ROM and forget the first one if nothing is on 
it, or did I forget some step and nothing happened when I burned?

> > > 6.  To write this file to a CD:
> > > cdrecord -v fs=6m speed=2 dev=0,0,0 filename.raw
> > > Before actually burning a CD the first time run this with -dummy and
> > > stop it before the 10 sec countdown 'last chance to quit'.  If you forget
> > > to stop it the next record won't work until you type cdrecord -reset.
>
>         I've had to do -reset many times for various reasons.. Have
> never stopped a -dummy run before the end because you wont know any
> more than you did before running it.. Sometimes have had to eject
> then refit the blank.. Don't remember the reason why.. Computers??

When I made the other copy I stopped it before the dummy mode started to 
burn rather than wait 40 min for it to finish (at 2x burn speed).

Floppy disks are a lot easier to use, and reuse, until they go bad or the 
drive goes bad.

> > > Hal said in order to eliminate the need to write dev=0,0,0 for
> > > the reader and writer to put into /etc/profile
> > > export CDR_device=0,0,0
> > >
> > > Can I also put in
> > > export CDR_SPEED=2
> > > export CDR_FIFOSIZE=6  (or just omit fs=6m to get default 4MB?)
>
>         RTFM of course, but CDR_device a good one because that
> hardware should stay put in that spot.. The speed should be entered
> if you have different media blanks; some faster than others.. Same,
> maybe, with fifo size...??..


Any speed blank will record at 2X in a 2X recorder.  Why do I want to 
chnage the fifo size from default 4MB to your suggested 6MB?  Is this how 
much it records at one time and is 6MB going to go faster?

> --
>
>    Hal - in Terra Alta, WV - Slackware GNU/Linux 9.0   (2.4.20-1)
> .
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keesan AT sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org