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Date:      Fri, 02 Aug 1996 20:04:29 -0700
From:      Darryl Okahata <darrylo@hpnmhjw.sr.hp.com>
To:        "Louis A. Mamakos" <louie@TransSys.COM>
Cc:        freebsd-hardware@freebsd.org
Subject:   Re: h/w requirements for CD-R writing? 
Message-ID:  <199608030304.AA097891469@hpnmhjw.sr.hp.com>
In-Reply-To: Your message of "Fri, 02 Aug 1996 22:40:03 EDT." <199608030240.WAA01978@whizzo.transsys.com> 

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> Just curious, but is there any reason why you couldn't create the CD
> image on a bulk sequential medium, like a tape?  I believe that the
> mkisofs program doesn't do random I/O, just sequential, so this ought
> to work, right?  You might have to burn the CD in "slow" mode given
> the transfer rate of the DAT drive.

     Well, maybe.  Assuming that the DAT drive can do at least 9MB/min
(my old Archive 2550X DAT drive probably cannot do this), probably, if
you burned in 1X mode (150kb/sec).  Burning in 2X mode would require the
DAT drive to deliver at least 18MB/minute; I think some DAT drives can,
but not all.

     Of course, I don't know if burning in 1X mode will work, but I
assume that it does (I'm running a bit low on disk space, and so I may
try a 1X burn with the image accessed via NFS).

     -- Darryl Okahata
	darrylo@sr.hp.com
	http://web.sr.hp.com/~darrylo/



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