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Re: problems writing a large file to DVD+R Double Layer disk

Kish Shen <kish.shen@crosscoreop.com> wrote:

> Hi Jörg,
> Thanks again for your quick reply!
> On Monday 02 April 2007 13:17, Joerg Schilling wrote:
> > Kish Shen <kish.shen@crosscoreop.com> wrote:
> > > mkisofs -R /master/tree  |  cdrecord  speed=2  dev=2,0
> > 
> > See the man page for cdrecord....
> > This will not work as you need to know the size of the session in advance.
> > There are examples in the man page how to specify the size.
> > 
> Is this the tsize=XXXXs option? I tried using mkisofs -R as shown on the man page to get the
> size:
>  mkisofs â??-R â??-q â??-printâ??size /master/tree

Why do you belkieve there is a -q option?

mkisofs did never have a -q option.

> but the '-q' option was not recognised -- should this be -quiet? Anyway, it again said my file is too
> large and ignored it. 


> The size for 's' (sector?) seems to be 2048 bytes, and when I hand calculated the sector sizes
> for the 7 other files I have in the directory (which were all smaller than 4GB and
> so were not ignored), rounding up each file's sector size to the next integer, I got a sector 
> count of 745189, which is a little less than what mkisofs gives me (745364 with -R, or 745370
> with -R -J). Am I missing something?

I believe that no.

> I calculated the sector size for each file by using the size from ls -l, and divide this by 2048,
> and rounding it up to the next integer.
> Will the written data be shown as files, even for the file that is > 4GB? I just want to save
> it as data, and not as a video file that conforms to some standard... 

I do not understand you.

mkisofs will just skip the files >= 4GB and put the rest into the ISO-9660 

> > dev= is unneeded in case that you only have one single CD/DVD writer.
> > 
> > Jörg
> > 
> Although I have one CD/DVD writer only, I do have another DVD reader (IDE) and a
> Panasonic PD/CD-ROM dual that is a SCSI device (it can read/write PD (the predecessor to
> DVD-RAM) disks, but can only play CDs)). Is there some way I can check if dev= is
> needed or not?

If you have more than one device that identifies as "CD-ROM", you need to 
specify dev= 

Run cdrecord -scanbus to find the needed dev= parameter in this case.


 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
       js@cs.tu-berlin.de                (uni)  
       schilling@fokus.fraunhofer.de     (work) Blog: http://schily.blogspot.com/
 URL:  http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily

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