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Date: Wed, 14 Oct 2009 20:24:50 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: questions@freebsd.org
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Subject: Re: mkisofs error
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On Wed, 14 Oct 2009, Warren Block wrote:

> My data backups to DVD use mkisofs to build ISO9660 DVDs like so:
>
> mkisofs -J -joliet-long -r -hide-rr-moved -graft-points dir1 dir2 dir3
>
> and then piped into cdrecord.  However, I found a problem with one file that 
> casts some doubt on the whole process.  The file is named 
> img_0185-6x4crop.jpg and is 3,309,906 bytes.  On the hard drive, it reads 
> fine.
>
> The filename is present on the DVD, but the file always gives a read error:
>
> # file img_0185-6x4crop.jpg
> img_0185-6x4crop.jpg: ERROR: cannot read `img_0185-6x4crop.jpg' (Input/output 
> error)
>
> It's not a one-time error; every DVD always has the same problem.  What is 
> going wrong?  A poison filename?

Following up: growisofs with the same parameters has no problems with 
that file.

-Warren Block * Rapid City, South Dakota USA