Got an answer from the man page on cdrecord
-multi Allow multi session CD's to be made. This flag
needs to be present on all sessions of a multi ses-
sion disk, except you want to create a session that
will be the last session on the media. The fixa-
tion will be done in a way that allows the CD-
Recorder to append additional sessions later. This
is done by generation a TOC with a link to the next
program area. The so generated media is not 100%
compatible to manufactured CD's (except for
CDplus). Use only for recording of multi session
CD's. If this option is present, the default track
type is CD-ROM XA mode 2. The Sony drives have no
hardware support for CD-ROM XA mode 2. You have to
specify the -data option in order to create multi
session disks on these drives. As long as cdrecord
does not have a coder for converting data sectors
to audio sectors, you need to force CD-ROM sectors
by including the -data option if you like to record
a multisession disk in DAO/SAO mode. Not all
drives allow multisession CD's in DAO/SAO mode.
So this should allow what you want to happen to happen...
then
-msinfo
Retrieve multi session info in a form suitable for
mkisofs-1.10 or later.
This option makes only sense with a CD that con-
tains at least one closed session and is appendable
(not finally closed yet). Some drives create error
messages if you try to get the multi session info
for a disk that is not suitable for this operation.
Will allow you to retrieve info and feed it to mkisofs to find out what
is left/available on the cd....
James
On Thu, 2003-01-23 at 13:21, bascule wrote:
> james,
> hmm that makes sense,
> what i need now is a prog to backup to cd and do incremental backups,
> preferably one that would either say how much was to be written - so i could
> wait till there was a cds worth, - or do multisession backups
> any recommendations?
>
> bascule
>
> On Thursday 23 Jan 2003 7:57 am, James Sparenberg wrote:
> > How about this product...it reads the CD's and creates the database...
> > Use whatever to backup to CD then this to catalog/sort etc.
> >
> >
> > http://mp3db2.sourceforge.net/
> >
> > James
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