From owner-freebsd-scsi Mon Jul 17 23:54:24 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from post.mail.nl.demon.net (post-10.mail.nl.demon.net [194.159.73.20]) by hub.freebsd.org (Postfix) with ESMTP id 3BB1D37BB9E for ; Mon, 17 Jul 2000 23:54:18 -0700 (PDT) (envelope-from wkb@freebie.demon.nl) Received: from [212.238.54.101] (helo=freebie.demon.nl) by post.mail.nl.demon.net with smtp (Exim 3.14 #2) id 13ERGg-0005a2-00; Tue, 18 Jul 2000 06:54:14 +0000 Received: (from wkb@localhost) by freebie.demon.nl (8.9.3/8.9.3) id IAA80708; Tue, 18 Jul 2000 08:43:47 +0200 (CEST) (envelope-from wkb) Date: Tue, 18 Jul 2000 08:43:47 +0200 From: Wilko Bulte To: "Kenneth D. Merry" Cc: "Jason T. Miller" , freebsd-scsi@freebsd.org Subject: Re: Yamaha CDR100 and FreeBSD 4.0-STABLE Message-ID: <20000718084347.A80690@freebie.demon.nl> Reply-To: wilko@freebsd.org References: <20000717220436.A96300@panzer.kdm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <20000717220436.A96300@panzer.kdm.org>; from ken@kdm.org on Mon, Jul 17, 2000 at 10:04:36PM -0600 X-OS: FreeBSD 4.0-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, Jul 17, 2000 at 10:04:36PM -0600, Kenneth D. Merry wrote: > On Mon, Jul 17, 2000 at 10:10:21 -0500, Jason T. Miller wrote: ... > > Finally, I do realize that some OEM-modified CD-ROM drives allow a > > 512-byte block size, then do the deblocking of 2048-byte records in the > > drive. This was to maintain compatibility with hard drive code that was > > dependent on a 512-byte block size. Are these drives supported now, and is > > anyone using them? I don't think I have any, though I do have an old SunCD > > that may or may not do it; haven't checked yet. The older Sun drives are 512, without jumpers. I have succesfully used the the Digital RRD4x series CDROM drives who are also 512 b/s (some have a 512/2048 jumper, but only the newer ones). The work just fine for me with 512 b/s selected. > Yes, they are supported by the driver, I'm not sure about the ISO9660 code. > You can often use a dip switch or jumper to change the behavior back and > forth, though. > > Usually you'll only want to use the drive in 512-byte block mode to access > CDs created with a 512-byte blocksize. -- Wilko Bulte http://www.freebsd.org wilko@freebsd.org http://www.nlfug.nl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message