From owner-freebsd-hardware Fri Aug 2 20:04:42 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id UAA20338 for hardware-outgoing; Fri, 2 Aug 1996 20:04:42 -0700 (PDT) Received: from relay.hp.com (relay.hp.com [15.255.152.2]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id UAA20332 for ; Fri, 2 Aug 1996 20:04:39 -0700 (PDT) Received: from srmail.sr.hp.com by relay.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA044301471; Fri, 2 Aug 1996 20:04:32 -0700 Received: from hpnmhjw.sr.hp.com by srmail.sr.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA244231469; Fri, 2 Aug 1996 20:04:30 -0700 Received: from mina.sr.hp.com by hpnmhjw.sr.hp.com with SMTP (1.37.109.16/15.5+ECS 3.3) id AA097891469; Fri, 2 Aug 1996 20:04:29 -0700 Message-Id: <199608030304.AA097891469@hpnmhjw.sr.hp.com> To: "Louis A. Mamakos" Cc: freebsd-hardware@freebsd.org Subject: Re: h/w requirements for CD-R writing? In-Reply-To: Your message of "Fri, 02 Aug 1996 22:40:03 EDT." <199608030240.WAA01978@whizzo.transsys.com> Date: Fri, 02 Aug 1996 20:04:29 -0700 From: Darryl Okahata Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > 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/