[OT] - Recovery of data from DVD-R

[Dan Jenkins]

May be Linux related, if anyone can suggest Linux tools to use. :-)

A friend has a DVD-R which contains sentimental documents from her 
mother & father who passed away recently. The DVD is unreadable. The 
DVD-R was burned April 2008 and was stored since then in a bubble-wrap 
envelope and, by the appearance, squeezed under a pile or between books. 
The surface of the DVD has an imprint of the bubble wrap on the surface, 
which several cleaning passes (DVD cleaner & alcohol with a microfiber 
cloth from a DVD cleaning kit) did not completely remove. The disk 
simply fails to read anything.

Any suggestions? Including data recovery services who might be able to help.
Thanks.

--
Dan Jenkins, Rastech Inc.