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Re: Dead CD-R burn...



It is highly recommended to first preopare the image with mkisofs.
check it with loopback device and only then burn it.
Most CD-R's depend on the speed their internal buffer is being fed.
If there is a delay the CD will be unusable.
Try to run mkisofs to a disk image,
Then test it with 
mount -t iso9660 -o ro,loop=/dev/loop0 imganame /mntpoint
Only then run cdrecord from the Image.

I have burned this way Hundreds of CD's under Linux without a single
problem.

Yaniv Kimchi 
yaniv@zvia.org.il

On Thu, 3 Sep 1998, Ze'ev Maor wrote:

> I've tried to burn a couple of CD-Rs with little to no success.
> 
> Here's what I did, maybe someone can help:
> 
> I'm using the HP-SureSture7100e, I've compiled paride+epat+pg as
>  modules, loaded them, and the pg driver successfuly identified my
>  CD-R. I've patched 'cdrecorder' with the scsi-linux-pg.c support and
>  re-compiled it. I've done a few 'dummy' tests to make sure
>  everything is ok, and got no error messages, up to now, as smooth
>  as it gets (well, it did take 5 hours....;-).
> 
> Then I wanted to burn a couple of dirs from my CD-ROM and used
>  the following command:
> 
> mkisofs -r /cdrom | cdrecord -v -multi fs=15m speed=2 dev=0 -
> 
>  the process started and seemed to work fine...following are the last log
> lines of the burning:
> 
>    87.68% done, estimate finish Thu Sep  3 04:16:01 1998
>    92.05% done, estimate finish Thu Sep  3 04:16:03 1998
>    96.44% done, estimate finish Thu Sep  3 04:16:04 1998
>    Total extents actually written = 114066
>    Total translation table size: 0
>    Total rockridge attributes bytes: 1325
>    Total directory bytes: 4096
>    Path table size(bytes): 44
>    Max brk space used 4000
>    114066 extents written (222 Mb)
>    Track 01: 222 MB written (fifo 100%).
>    Track 01: Total bytes read/written: 233607168/233607168
>  (114066 sectors).
>    Writing  time:  771.631s
>    Fixating...
>    Fixating time:  137.099s
>    cdrecord: fifo had 7131 puts and 7131 gets.
>    cdrecord: fifo was 0 times empty and 6618 times full, min fill was
>  95%.
> 
> 
> All seems great isn't it?? So why is it that after all this the media
>  died, I couldn't mount it (no media / unknown media / CD-ROM
>  won't stop spinning etc.) + I couldn't get the TOC with 'cdrecord -toc
>  dev=0'.
> 
> I've also tried creating small images with 'mkisofs' and burning them,
>  but the result was the same.
> 
> Can anyone help???
> 
>