Re: Using readcd to read 3rd party discs

[Ashish Rangole <Ashish.Rangole@vexcel.com>]

Thanks for the response. But I still have couple of
concerns/questions.

1.isoinfo result and readcd result do not always match. Which one to
  choose. Can readcd just tell the number of sectors without reading
  till end?
2.Assuming I decide to use a value for number of sectors, how do I know
  that I should subtract 2 from it (in case CD was written w/o -dao) or
  not before I use it in "sectors=" ? I do not know how and where the CD
  was written (Linux?, Windows? etc).

I shall really appreciate any help.

Thanks
Ashish


On Sat, 2003-10-11 at 07:26, Rob Bogus wrote:
> Ashish Rangole wrote:
> 
> >I guess this is a novice level question.
> >
> >I am planning to use readcd to read from a data CD/DVD. 
> >I understand that for discs written with "-dao" flag, readcd will
> >read exact number of sectors, whereas for those written w/o
> >"-dao" flag, readcd tries to read 2 sectors more than the actual
> >data sectors causing readcd to fail.
> >
> >In order to avoid the error at the end of reading I think I should use
> >"sectors=" option with readcd. For a disc that I haven't written and
> >thus do not know how many sectors it has, how do I find that out? In
> >other words, how do I know what value should I give to "sectors=" when
> >I get a CD/DVD from a thirdparty which might or might not have been
> >written with "-dao" option?
> >
> >Is there a better option than using readcd?
> >
> >Thanks in advance for your help
> >  
> >
> You can use isoinfo (with -d) to get that info.
> 
> -- 
> E. Robert Bogusta
>   It seemed like a good idea at the time
> 
> 
>