Re: Reading Windows CD on Linux 2.4.6

H. Peter Anvin (hpa@zytor.com)
17 Sep 2001 16:08:10 -0700


Followup to: <3BA6791A.616636CE@MissionCriticalLinux.com>
By author: Bruce Blinn <blinn@MissionCriticalLinux.com>
In newsgroup: linux.dev.kernel
>
> I do not think the disk is missing data or that there are any bad
> blocks. The reason I say this is because I can access every file on the
> disk when the CD is mounted as an iso9660 file system on a 2.2.19
> kernel. I compared the files with the originals and they are identical.
>
> The only reason I found out dd would not copy the disk is because Masoud
> asked for an image.
> I tried using dd to copy a much larger CD (150 Mb) and it fails at the
> same place and the resulting file is the same size (737280 bytes). So
> it fails long before the end of the data.
>
> By the way, dd works fine when copying other CDs that were not created
> under Windows.
>

This almost seems to imply they're recording the data noncontiguously,
which would be totally bizarre but not totally impossible.

-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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