From owner-freebsd-multimedia Wed Mar 21 7: 3: 7 2001 Delivered-To: freebsd-multimedia@freebsd.org Received: from freebsd.dk (fw-rl0.freebsd.dk [212.242.86.114]) by hub.freebsd.org (Postfix) with ESMTP id 5452337B718 for ; Wed, 21 Mar 2001 07:03:04 -0800 (PST) (envelope-from sos@freebsd.dk) Received: (from sos@localhost) by freebsd.dk (8.9.3/8.9.1) id QAA00723; Wed, 21 Mar 2001 16:02:02 +0100 (CET) (envelope-from sos) From: Soren Schmidt Message-Id: <200103211502.QAA00723@freebsd.dk> Subject: Re: burncd and ISO copies In-Reply-To: <200103211206.f2LC63911963@dungeon.home> from Stephen McKay at "Mar 21, 2001 10:06:03 pm" To: mckay@thehub.com.au (Stephen McKay) Date: Wed, 21 Mar 2001 16:02:02 +0100 (CET) Cc: multimedia@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org It seems Stephen McKay wrote: > I just did a spot test. Results: my SCSI CD and SCSI burner worked > fine. My ATAPI Pioneer DVD dropped the last block. This is with > 4.2-stable, and 4.3-beta respectively :-) The SCSI system was built > last November, the IDE one just 11 days ago. > > The tests: (I used CD1 from 4.2-R, if anyone cares) > > (SCSI burner CW-7502) > $ dd if=/dev/rcd0c bs=4k of=/dev/null > 163113+1 records in > 163113+1 records out > 668112896 bytes transferred in 542.834929 secs (1230785 bytes/sec) > > (ATAPI DVD Pioneer 103S) > $ dd if=/dev/racd0c bs=4k of=/dev/null > 163113+0 records in > 163113+0 records out > 668110848 bytes transferred in 427.117307 secs (1564233 bytes/sec) The problem is that the read capacity command returns different things on different CDROM's its the usual +-1 problem. Now to get around that I've just committed a fix to -current that gets the info from the toc instead, that way it should work on all drives... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message