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Date: Fri, 29 Oct 2010 10:54:21 -0700
From: "Jason C. Wells" <jcw@speakeasy.net>
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Subject: Recovering a DVD
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I have a back up DVD that I cannot mount.  dd won't read /dev/acd0  with 
an error "dd: /dev/acd0: Input/output error".    Tried dvdisaster but it 
can't find my drive. Any pointers you can offer in getting this data off 
this disc are greatly appreciated.

Thanks,
Jason