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Date: Tue, 20 May 2003 14:46:30 -0400
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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Subject: Re: Creating a bin or ISO image of a CD??
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Warren Block wrote:
> On Mon, 19 May 2003, Eduardo Viruena Silva wrote:
>>	dd if=/dev/acd0c of=my_image bs=2352
> 
> Hmmm.  This brings up something I've wondered about.  I always use
> bs=2k to match the actual sector size of CDs.

The "sector size" of a CD isn't constant, or perhaps it would be better 
to say that the size depends on whether you want to consider the raw 
data including the Reed-Solomon ECC data (and maybe the subchannel info, 
too-- see DAO96 as a reference keyword), or the data post-ECC.

-Chuck