Date: Wed, 21 Mar 2001 22:06:03 +1000 From: Stephen McKay <mckay@thehub.com.au> To: Soren Schmidt <sos@freebsd.dk> Cc: multimedia@freebsd.org, mckay@thehub.com.au Subject: Re: burncd and ISO copies Message-ID: <200103211206.f2LC63911963@dungeon.home> In-Reply-To: <200103202100.WAA29441@freebsd.dk> from Soren Schmidt at "Tue, 20 Mar 2001 21:00:16 %2B0000" References: <86lmq09not.fsf@titine.fr.eu.org> <200103202100.WAA29441@freebsd.dk>
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On Tuesday, 20th March 2001, Soren Schmidt wrote: >It seems Eric Jacoboni wrote: >> >>>>> "Soren" == Soren Schmidt <sos@freebsd.dk> writes: >> >> Soren> dd if=/dev/acd0c bs=2k | burncd -f /dev/acd0c data - fixate >> >> Great!... It's work (4.3-Beta) >> >> Is there any reason for choosing 2k as blocksize (eg. is it the result >> of a complex equation involving the data rate transfert between the CD >> and the CD-RW) ? > >No it the blocksize of the CDROM, you could use a multiple of that.... Really? I always use 2k with CDs because I lose data at the end of the CD with anything bigger. Some problem with detecting the end of the CD it seems. 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) Stephen. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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