On Fri, Jun 09, 2000 at 12:16:42AM -0400, Douglas Gilbert wrote:
> With regard to the discussion about reading data from
> CDROMs, in the case of CD-Rs, the last few sectors may be
> unreadable.
>
> Quoting from Joerg Schilling's cdrecord_1.8/README.copy :
> "NOTE: All CD-R's written in Track At Once mode end in two unreadable
> run-out sectors. If the disk has been written with a Yamaha CD-R100
> or with a Yamaha CD-R102, there are even more run-out sectors."
Yes. That is precisely what I see - two additional sectors.
> The isosize utility calculates the length in bytes from
> the TOC. Unfortunately this utility is not supplied
> separately with recent versions of cdrecord. I got this
> one from a 5 year old copy of cdwrite.
No, isosize does not read the CDROM's TOC.
Instead, it reads the iso9660 filesystem header.
There is a bug in isosize.c, where
isonum_733(ipd.logical_block_size)
should be
isonum_723(ipd.logical_block_size)
but in all modern cases the answer is 2048.
Andries
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Jun 15 2000 - 21:00:17 EST