[Gllug] How to manage scratched DVDs

[Andrew Farnsworth]

t.clarke wrote:

>As a matter of interest, I have had some success with using 'T-cut' car-paint
>cleaner to sort out scratched DVDs.  Care must be taken to only polish the
>disc radially (so all very fine resultant scratches run from inside to outside
>and not around the disc).
>If I understand the interleaved reed-solomon ECC system used on the discs
>correctly, radial scratches unless quite wide will not blot out enough bits
>to defeat the ECC system, whilst scratches around the disc will.  Also I note
>that greasy thumbprints will do a remarkably good job of screwing up a disc
>(albeit not permanently).
>  
>
<snip>

Has anyone had any luck with the comercial CD / DVD repair kits? I have 
considered buying one to use on my really scratched disks to allow me to 
rip them to my HD.  I have several disks that just don't work anymore 
(yes, my fault.  Used a cheap CD case and it scratched em all to hell) 
and figure what do I have to lose... ok, 30 GBP but if it fixes 1/2 of 
them, it was worth it.

Andrew Farnsworth

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