[EMAIL PROTECTED] wrote:
> Hi,
> >
> > Now I can detect CD-R, CD-RW very well by -atip
> >but are there information about the CD-R is closed, or it's blank, can write
> >or not?
> >I look and look...but can't find any info about that in -atip
>
> I just compared a used CD-R with an unused one (Platinum cheapos).
> There is no difference in the -atip output.
> Same with blank/non-blank CD-RW.
> I can distinguish them by this shell code snippet which does a 1 byte
> test read :
> if dd if=/dev/sr0 of=/dev/null bs=1 count=1
> then
> echo "Has data"
> else
> echo "Seems to be empty"
> fi
This does not work correctly in all cases.
Use the "official" way and call readcd sectors=0-0
J�rg
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