Date: Tue, 18 Jul 2000 08:43:47 +0200 From: Wilko Bulte <wkb@freebie.demon.nl> To: "Kenneth D. Merry" <ken@kdm.org> Cc: "Jason T. Miller" <jasomill@shaffstall.com>, freebsd-scsi@freebsd.org Subject: Re: Yamaha CDR100 and FreeBSD 4.0-STABLE Message-ID: <20000718084347.A80690@freebie.demon.nl> In-Reply-To: <20000717220436.A96300@panzer.kdm.org>; from ken@kdm.org on Mon, Jul 17, 2000 at 10:04:36PM -0600 References: <Pine.LNX.4.10.10007170825460.5493-100000@guildenstern.shaffstall.com> <20000717220436.A96300@panzer.kdm.org>
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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
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