initializing a blank DVD+R disk?

[Konstantin Svist]

On 01/11/2010 02:56 PM, Rick Stevens wrote:
> On 01/11/2010 02:40 PM, Stuart McGraw wrote:
>   
>> I am trying to setup backup software (Bacula) on my home
>> network and ran into a real dumb newbie DVD question I haven't
>> been able to google an answer to (at least an answer I could
>> understand) since I have never used writable DVDs before.
>>
>> How does one write a iso filesystem onto a blank DVD+R disk
>> without writing any files, and leaving the DVD writable (i.e,
>> not finalized if that this the right term)?  The growisofs
>> and mkisofs man pages are mostly greek to me.  Is there a
>> magic cookbook incantation I can use until I can figure
>> out all the techy details?\
>>     
> It's pretty simple:
>
> 	growisofs -Z /dev/dvd -R -J /path/file1 /path/file2 ...
>
> When you want to add more files:
>
> 	growisofs -M /dev/dvd -R -J /path/to/more/files ...
>
> The magic is replacing the "-Z" (meaning "initialize session") with
> "-M" (merge data into session).  When you finally want to close the
> session:
>
> 	 growisofs -M /dev/dvd=/dev/zero
>
> which fills out the rest of the session with zeroes.
>   

Is there also a way to read the different sessions (or states of the
session)?