Copying CDs

[Jay Estabrook]

On Mon, Apr 26, 2004 at 01:56:12PM -0400, bscott at ntisys.com wrote:
>
>   One of the things I still haven't figured out but am rather curious about
> is that if I download a Red Hat CD image, use "cdrecord" to burn it, and
> then boot and run a "mediacheck", it will pass just fine.  But if I do
> 
> 	diff -q /dev/cdrom /path/to/cdimage.iso
> 
> then I get a mismatch (/dev/cdrom ends prematurely).  I don't get how it can
> pass Red Hat's media check but not diff properly.
> 
>   Here there be dragons.

Here there be explanations... ;-}

	http://www.cdrfaq.org/faq02.html#S2-9

I had this problem also, when using the "cdrecord" default
track-at-once mode; by adding "-dao" to the argument list, one should
be able to make CDs the same size as the ISO image file.

 --Jay++

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Jay A Estabrook                            HPTC - LINUX support
Hewlett-Packard Company - ZKO2-3/N30       (603) 884-0301
110 Spit Brook Road, Nashua NH 03062       Jay.Estabrook at hp.com
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