what is cdrecord doing?

[Jeff Vian]

On Wed, 2006-11-08 at 12:07 -0600, Michael Hennebry wrote:
> I used cdrecord to burn a DVD.
> It seems to have worked, but the output confuses me.
> The last line is:
> Track 01: Total bytes read/written: 399360/614400 (300 sectors).
> 
That would be almost 700mb, which is the typical max size for a CD.  You
are after all using cdrecord which is designed with CDs in mind.

Why not use growisofs (cli) or use k3b (gui) to burn the dvd.  Both are
designed for that.

> When I've done CD's the read/written
> numbers were usually exactly the same.
> They were never that different.
> What is going on?   Why the big difference?
> 
> I'm running FC5.
> The entire output follows, there is some wraparound:
> [root at 24-116-184-47 hennebry]# cdrecord -dao -dev=ATA:1,1,0 display.iso
> Cdrecord-Clone 2.01.01a03-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2005
> Jörg Schilling
> NOTE: This version contains the OSS DVD extensions for cdrtools and thus
> may
>       have bugs related to DVD issues that are not present in the original
>       cdrtools. Please send bug reports or support requests to
>       http://bugzilla.redhat.com/bugzilla The original cdrtools author
> should
>       not be bothered with problems in this version.
> scsidev: 'ATA:1,1,0'
> devname: 'ATA'
> scsibus: 1 target: 1 lun: 0
> Linux sg driver version: 3.5.27
> Using libscg version 'schily-0.8'.
> cdrecord: Warning: using inofficial libscg transport code version (schily
> - Red Hat-scsi-linux-sg.c-1.85-RH '@(#)scsi-linux-sg.c        1.85
> 05/05/16 Copyright 1997 J. Schilling').
> Device type    : Removable CD-ROM
> Version        : 0
> Response Format: 2
> Capabilities   :
> Vendor_info    : 'TOSHIBA '
> Identifikation : 'DVD-ROM SD-R5112'
> Revision       : '1031'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW.
> cdrecord: Found DVD media: using cdr_mdvd.
> Using Session At Once (SAO) for DVD mode.
> Using Session At Once (SAO) for DVD mode.
> Using Session At Once (SAO) for DVD mode.
> Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
> Driver flags   : SWABAUDIO BURNFREE
> Supported modes: PACKET SAO
> scsi_set_streaming
> Speed set to 2822 KB/s
> Starting to write CD/DVD at speed   2.0 in real SAO mode for single
> session.
> Last chance to quit, starting real write    0 seconds. Operation starts.
> trackno=0
> cdrecord: WARNING: Drive returns wrong startsec (0) using -150
> Track 01: Total bytes read/written: 399360/614400 (300 sectors).
> [root at 24-116-184-47 hennebry]#
> :end of entire output
> 
> -- 
> Mike   hennebry at web.cs.ndsu.NoDak.edu
> "it stands to reason that they weren't always called the ancients."
>                                                       --  Daniel Jackson
> 
>